They've honestly written themselves into a corner with Kamigawa. R&D doesn't like the setting, but Tamiyo and "Release" from Kaladesh made it hard to completely write off. Especially since "Release" tied the otherwise fanservice-y nod towards Kamigawa in Agents of Artifice into an actually relevant reference. But it's not a good sign for a plane when Maro's easiest tell when things aren't going well at WotC is when he deflects and goes off about how poor Kamigawa's design is on Tumblr. (Apparently, Ikoria is causing problems.)
I mean, we are talking about a company that has a sad history of just ignoring or retconning inconvenient bits of canon, especially if it helps them to cling to the status quo of a plane. But I just love the Kamigawa part of AoA in general and the fact that it beautifully matches the ending of the Kamigawa trilogy in particular. That's exactly what I'd want Kamigawa to be like on a return. Perhaps my biggest frustration with WotC's stance on Kamigawa is their refusal to understand that most if not all of their problems with the original Kamigawa block have already been solved by the story. The war is over, the kami have retreated, the mortals fuel their spells with mana now, and so on and so forth. They have a built in reason to dial back the presence of the kami and their related mechanics and focus more on the mortals. The fact that
Kaseto, Orochi Archmage exists gives me hope, though. He's a character from modern day Kamigawa, and his character blurb lines up pretty well with what has been established about the plane so far. I guess the popularity of Commander and the increased focus on legends and 'legendary matters' cards are working in Kamigawa's favour, especially since they figured out how to make a legendary theme work with the as-fan in boosters in
Dominaria. They might as well double down on that aspect and add a few manlands and some tribal and they should have a pretty solid foundation for Kamigawa II. Heck, even the clumsy Flipcards could be replaced by double-faced cards if they decided to do a new riff on those. Ideally, I'd also want them to show us some new regions of the plane as well. There have to be other Daimyo and perhaps even an emperor somewhere, and we have no idea what lies beyond the Sokenzan Mountains or the Jukai Forest. There could be
surviving Kappa and some new races as well, maybe merfolk or aven that look like ravens (as a stand in for Tengu).
If they were to scrap Zendikar (they aren't), I would agree Kamigawa would be the best place for the land mechanics. I'd actually suggest Ixalan for the "exploration" flavor aspects. Egypt plane 2.0 could also work.
I'm honestly wondering whether they'd even be able to do anything with Ixalan again, other than pointing the camera at Torrezon and dealing with Elenda's return, in which case we'd de facto be looking at a completely different setting. I'd argue the resolution of RIX basically took away virtually all sources of conflict and adventure on the continent of Ixalan. I think Quests could be used on Bant, Theros or Eldraine, or perhaps even Shandalar. There is a certain pool of vaguely heroic/chivalric/adventurous mechanics in general that could fit a variety of planes (e.g. Quests, Heroic, Exalted, Renown, Adventure). Allies might work on Shandalar if they want to stick to the resonant fantasy theme. If Zendikar works as a D&D-esque setting, so does Shandalar. Traps and Explore could be flavourful fits for southern Jamuraa. Like, seriously, I want them to completely embrace that setting and give us an amazing pulp adventure set/block.
It's not really worth it, but it's be interesting to try to redo Mercadia as a competition between city states (Mercadia City, Saprazzo, Ouramos) and artistically focusing on the layouts of cities on such fantastical, but not volatile landscapes. However, other than dryads, that's the only thing worth taking from the plane. It'd need more work on plane identity than just being "opposite world."
I mean, technically Mercadia is supposed to be the "mercantile plane" (even though that didn't come across too well in the mechanics), and Maro has said that would be the approach they'd be most likely to take if they ever returned there. I've actually been considering starting a thread about returning to Mercadia for a while, because there are quite a few mechanical elements that I could see working for that...
I'd like to see Wildfire actually fleshed out and am perfectly willing to sacrifice what little there is of Regatha to see it.
Agreed, though I don't think the two are in direct competition. I know they've been playing up or even exaggerating the fiery aspects of Regatha a bit, but if you go by the novel, it's actually supposed to be a fairly colour-balanced and perfectly ordinary plane. Sure, it's the plane that has (or had) the Purifying Fire as well as Keral Keep, but an underlying theme of that story was Chandra's restoring the balance among the colours. I don't think either Regatha or Wildfire will appear on cards outside of Core Sets or supplemental products, Wildfire for being too focused on red mana and Regatha for being too generic, unless they can find a coherent theme or identity for it. That said, I'd be totally on board with it if we visited Shandalar in a proper set and had the Core Sets switch to Regatha as the generic fantasy plane.
I will never understand why so many people dislike kamigawa. Maybe it's because I started playing around that time and didn't know any better but the art was so cool and the spirit syngery junk was really fun albeit underpowered.
I'm not even convinced there are that many people who actually dislike it, or at least not for the reasons WotC claims. Every time someone in my playgroup mentions it, everyone expresses their excitement for more Kamigawa. Some of us are huge fans, but even the 'neutral' rest agrees that it would be pretty cool. Nobody I know actually assumes the mechanics are going to be terrible and underpowered if it happens. Besides, I loved the fact that Kamigawa exposed me to concepts from Japanese culture that I wasn't too familiar with, it just motivated me to look into it more deeply and made me happy that I'd discovered something new. I will admit that the novels probably played a major role in making me love Kamigawa, though. Not only were they simply amazing novels, they also did a great job of getting the weirder aspects of the setting across and making them cool. It's kinda sad to think that back in the day we got awesome stories that made me buy even underpowered and badly designed sets, when these days, the stories tend to frustrate and anger me so much that I'll even boycott or plain ignore perfectly fine sets with decent mechanics that I probably would have bought without the story.
Marketing goes both ways, do you hear me, WotC? (And so does cardstock quality...)