The March of the Machine and March of the Machine: Aftermath sets have brought Magic: The Gathering's latest storyline to a close. The threat of Elesh Norn's New Phyrexians has been mounting since as far back as the Scars of Mirrodin block. Since Kaldheim, they've been on the move with a plan to Compleat the entire Multiverse by force.
March of the Machine was the ultimate end to one of the Multiverse's greatest threats. However, it's far from a total victory. The New Phyrexians devastated huge swathes of every known plane. Several Planeswalkers remain Compleated and uncured. The Multiverse as a whole has been altered by the damage. As a result, Magic: The Gathering is poised to revisit some planes to see the after-effects of Elesh Norn's villainy. Eldraine is the first plane confirmed to be on the docket for a post-invasion revisit with Wilds of Eldraine, but it will be far from the last.
10 Ravnica
Ravnica is one of Magic: The Gathering's most popular planes, with two official blocks and another collection of sets to its name. It's been a fan-favorite plane since the original Ravnica: City of Guilds, and the repeated exposure hasn't dulled its popularity for fans. As a result, even though War of the Spark wasn't that long ago, many fans would be happy to return to the City of Guilds.
Ravnica didn't escape the New Phyrexian assault unscathed. The Compleated Vraska led a vengeful assault on the plane, blinding every soldier she found. Fortunately, Ral Zarek countered her assault and saved Ravnica with his unique brand of Izzet magi-tech. Nonetheless, the attack has left fresh distrust between Ravnica's guilds. Magic could easily explore a Ravnica on the brink of all-out guild warfare once more in a new set.
9 Amonkhet
Amonkhet was central to Magic: The Gathering's previous long-running storyline, serving as the staging ground for Nicol Bolas' army of Eternals. However, it only saw a brief appearance in March of the Machine. Vorinclex's forces attacked the plane's last survivors, who sided with their undead gods to hold the invasion back.
Amonkhet's storyline ended on a cliffhanger in the Hour of Devastation block with the last living residents trying to survive in the hostile desert. Their repulsion of the Phyrexian assault and tense relationship with their former gods opens some interesting doors for a future Magic set exploring the plane after its back-to-back calamities.
8 Kaldheim
The Kaldheim set was the first to show the New Phyrexians' multiversal ambitions. Its storyline largely skipped over the normal status quo of the plane, instead focusing on Vorinclex's assault and his uneasy deal with the Planeswalker Tibalt. As a result, Magic fans haven't gotten to explore Kaldheim in its usual state.
Given Kaldheim's place at the storyline's start, it could serve as a useful bookend for this chapter of Magic: The Gathering lore. In addition, many fans would appreciate the chance to see a more Kaldheim-focused storyline rather than the beginning of an epic Multiverse saga.
7 Vryn
Vryn has never been explored in a Magic: The Gathering set. Instead, it's been featured in a handful of cards and as one of Planechase 2012's planes. A set exploring Vryn could give fans an in-depth look at a world with creatures, technology, and politics that fans have barely gotten to see before.
However, there's another reason to revisit Vryn after March of the Machine's events. Vryn is the home of Magic: The Gathering's iconic Blue Planeswalker Jace Beleren. Jace was Compleated in Phyrexia: All Will Be One but is absent from March of the Machine. He could return to Vryn of his own volition, or his former allies may go there searching for him.
6 Ikoria
Ikoria is one of Magic: The Gathering's newest planes, only given prominence in the 2020 Ikoria: Lair of Behemoths set. It's a hostile world home to immense, titanic kaiju. Most of the plane's human inhabitants live in militant cities designed to survive monster attacks, though a select few live in harmony with their world's beasts.
However, Ikoria played an unexpectedly large role in Phyrexia: All Will Be One and March of the Machine. Ikorian Planeswalker Lukka formed part of the strike team against New Phyrexia and became Compleated due to bonding with a Phyrexian beast. Many fans would like to see Ikoria following the city of Drannith's destruction and the epic struggle between Ikoria's beasts and Phyrexian monstrosities.
5 Zendikar
Zendikar has been the site of some of Magic: The Gathering's most pivotal moments. However, the recent Zendikar Rising set had very little to do with the wider storyline. Zendikar suffered heavily in March of the Machine, with Nahiri's assault terraforming much of the once-natural world with metal.
A new Zendikar set taking place after March of the Machine could explore what Zendikar is like when part of it becomes tamed. A conflict between the danger of nature and the sterility of its terraforming could be new ground for the plane. In addition, it could give the Planeswalker Nahiri another attempt at redemption following her Compleation and subsequent cure and de-sparking.
4 Arcavios
Only parts of Arcavios have been seen in Magic: The Gathering. A single school in part of the plane served as the focus for the Strixhaven: School of Mages set. Arcavios as a whole, and Strixhaven specifically, were hard-hit by the Phyrexian assault. Most of the staff and faculty of Strixhaven died before the Invocation of the Founders repelled the invaders.
Given the New Phyrexians' defeats in many parts of the Multiverse, some Magic fans would like to explore a plane where they nearly won. In addition, Arcavios is the current home of popular Planeswalker Liliana Vess, whom many fans would like to see take a more active role in the story once more.
3 Zhalfir
Zhalfir has never been a plane before in Magic: The Gathering's history. Instead, it was originally Teferi's home nation on the plane of Dominaria. However, Teferi sealed Zhalfir away to protect it from the first Phyrexian invasion. To defeat New Phyrexia once and for all, Wrenn switched Zhalfir and New Phyrexia's places in the Multiverse with Realmbreaker.
As a result, Zhalfir is one of Magic: The Gathering's newest planes. As Teferi's homeland and one of Magic's most technologically-advanced civilizations, it has plenty of storytelling potential. Many fans expect to see a Magic: The Gathering set exploring Zhalfir soon due to its recent return.
2 Theros
Theros suffered far more than most other planes at the hands of Magic: The Gathering's Phyrexians. Ajani's assault on Theros targeted temples and other sites of worship. As the gods' worshippers become Compleated, their belief causes the gods to turn into Phyrexians as well. Many gods have been Compleated, though Heliod was killed outright.
Theros has always been a plane defined by its religious pantheon. A new Theros set in Magic: The Gathering could explore the world struggling to function without its gods, suffering due to worshipping Compleated entities, or even creating new gods out of sheer belief. Xenagos proved that powerful mortals can ascend to godhood in the original Theros block, so there may be more vying for those positions as well.
1 Lorwyn-Shadowmoor
Lorwyn-Shadowmoor is a plane many Magic: The Gathering fans wanted to return to even before the New Phyrexian invasion storyline. The initial Lorwyn block set up a fascinating dichotomy between Lorwyn, a bright fairy-tale plane with a distinct dark side, and Shadowmoor, its dark reflection that still had a few glimmers of light within.
Lorwyn-Shadowmoor has seen very little exploration since both aspects merged to become one. However, March of the Machine's story featured an interesting social shift. All of Lorwyn-Shadowmoor's creatures, even the supremacist Perfects and oppressed Eyeblights, fought together to battle the invaders. Lorwyn-Shadowmoor has gone unexplored for long enough, and now there's an upheaval to explore.