I will mention that I do love Windy Hill Zone given that it just works way better as a stage than Green Hill Zone... but they might not include it as Sonic already has a stage...
Also, question, do people expect the stages on Wii U to return without issue? Because I’m leaning towards all the original Wii U stages that don’t run into specific issues (Miiverse, maaaaybe Pyropshere if not retooled) should be easy enough to bring over.
Well, let's take a look at the remaining Wii U stages:
Battlefield/Final Destination/Big Battlefield - Likely replaced
Flat Zone X - Likely the Flat Zone stage we've seen, just waiting on confirmation
Gamer - Highly likely to be in, given it's the only other Wario stage.
Jungle Hyjinx - This one MAY be cut if the foreground background mechanic causes issues? It's one of the few I'm not completely confident on
Miiverse - Almost certainly not, but can't completely say no
Orbital Gate Assault - There's a photo that's probably this stage on the about page, so basically it's in
Windy Hill Zone - Sega may say no to this coming back? That's the most likely reason I'd see this cut. Or alternatively, Sakurai might have a 1 3rd party stage per IP rule, we don't know. Either way, this one is 50/50 on if it returns.
Pyrosphere - May or may not because Ridley
Wooly World - Highly Likely to come back
So of the originals, only Wooly World, Jungle Hyjinx and Gamer are really in question of the stages that don't have issues, as Orbital Gate Assault and Flat Zone X are practically confirmed. So yes, we'll probably see all the ones without issues at this point. Miiverse, Pyrospher, and Windy Hill Zone are all the likely cuts from this game. To add onto that, there's only 4 stages present in Brawl but not Wii U that aren't confirmed at this point, Hanenbow, Mario Bros, Rumble Falls, and Rainbow Cruise. so we may be seeing the entirety of Brawl and Wii U's unproblematic stages in this game (Hanenbow with Omega Form lacking music is the only truly problematic one, though Mario Bros and Rumble Falls do have tons of fan dislike.).
For reference, my thoughts on the other four stages in the game are below.
Kongo Jungle (64) - Already practically confirmed by Kongo Jungle Melee being renamed Kongo Falls
Peach's Castle (64) - Highly likely to come back
Pirate Ship (Brawl) -Highly Likely to come back
Yoshi's Island (Melee) - Highly likely to come back, but will probably receive a lesser visual overhaul than other melee stages, like both Onett and Temple, mostly focused on textures.
Anyways, my five stages:
1. Pirate Ship
2. Brinstar Depths
3. Poke Floats
4. Windy Hill Zone
5. Pac-Maze
If I get Pirate Ship back, that's enough to make this game perfect for me, but basically every stage added on top of that I'll take..