I've been coming up with ideas for how I would do AC for the Wii U (my opinion may be different from you guys think/what Nintendo will actually do), and here are some of the things I've come up with:
•A new tool: the bird net. This is much larger than the bug net, and will let you catch the town canary, among other species.
•Platinum tools will be introduced.
•Themed areas to visit that reflect different cultures, and have exclusive items.
These are the names I like:
Animal Crossing U
Animal Crossing: World Explorer
(this will be edited as I come up with more ideas)
To add to that maybe the AI could be totally amped up:
-The AI are divided into 2 groups: AC Foreign and AC Basic.
-AC Foreign would be all of the AC villagers who are more ethnic (French frog, Asian Mouse)
-AC Basic would be all the basic villagers who live in your town.
-A travel agency could be developed where you can a) open up the airport b) leave to a nearby town c) travel abroad
-The travel abroad option would change with the month (ie. October-China, November-France, and December-Australia)
-There would be about 4 travel abroad areas and they would change with you 3ds region (If you were from Asia you may go to a NY inspired US rather than China)
-On your trips you could harvest special fruit and play special games
-While on the trip you would be able to go online and meet up to 5 of your online friends in the travel area
-If you make friends with animals while away one may consider moving into your town
-You would stay on the trip for 48 hours or less and then would return home
-While away your home would be taken care of by Pelly
-Phyllis would run the Air Service
-The online count would be increased to 6
-The town would be much bigger
-If you an ethnic villager moves in you would celebrate their holidays (bonus)
-The ethnic villager wouldn't move in but instead stay at the hotel until another ethnic villager moves in from their area or if the hotel is full (3 slots)
-The ethnic villager would leave after 4 months no matter what