Pretty sure it will have voice chat, or at least it should. Wii had it if you bought WiiSpeak. And this AC will be very different. Still AC at its core, but the videos that ARE out show it looking very impressive, very redesigned, and adding a lot of features. This really will be the ultimate Animal Crossing game, and it shows. It's not the same as the DS/Wii version, but is far more. I'm really hoping Nintendo doesn't pull a NSMB styled greedy cash in by making a separate game for WiiU. City Folk was pretty much a slightly tweaked Wild World, which meant that you couldn't connect the two.To everyone disappointed about Animal Crossing:
I don't get why people want to see the game. Sure I put hundreds of hours into the DS one, and I'll get the 3DS one, but literally all the games are the same. The only thing they could really announce is whether it will have voice chat, and show a trailer of the same stuff we've seen in the other games.
With Nintendo going all out on this new Animal Crossing game, they should make it a dual release for 3DS and WiiU. I'd be disappointed if they made a slightly different version for the WiiU after spending so much time on the 3DS one. That would only make them incompatible. Having the same game available for both systems (WiiU launch/window, too!) would mean people on their WiiU could play the game with 3DS users and vice versa. Gamesaves stored in the cloud using Nintendo Network could make it so you could play the game on your WiiU at home, and 3DS away. It'd be nice. It would have also been reassuring to see some a new trailer, or at least ANY new info.
TL;DR: Animal Crossing Jump Out should be a 3DS & WiiU title, and it will definitely by the definitive Animal Crossing.