I had all the games pretty much for wii when they pulled the u stunt no new device just wii but buy another type no thanks..I hope not would hate not to be able to play it or buy a console ai don't want for one game. I think they should have just come up with a new name not angered all those already with original wii. I hope not...sigh, at least not u exclusive I had just bought a new regular wii before that u stunt.
Me personally, if the next installment was on the Wii U, i might skip out on it since i don't own a Wii U since none of the games interest me. Plus as i said before, i prefer my Animal Crossing games on a portable system. It makes it easier for me to check up on my animals. I never played City Folk that much because it was on the Wii. Plus it felt like Wild World with a reskin and a 'city'
While I feel that it's likely that the next game won't be for the 3DS since ACNL already is, I don't have a Wii U and I don't plan on buying it just for 1 game.
I hope they make AC games for future 3DS consoles, even if the next one isn't for it.
If the next AC game DOES come out for Wii U, and it has more features than New Leaf, then I will get the Wii U for the sole purpose of that game. That being said, I hope it doesn't come out for the Wii U. :/