What software team could realistically be working on a new Animal Crossing?
EAD Group No. 2, who have been doing all Animal Crossing games since Wild World, are doing Splatoon right now.
Each EAD 'group' doesn't really exist in the same way that other teams or groups do in other development houses. People flow between projects depending on needs. So just because 'group 2' is working on Splatoon, doesn't mean they can't also be working on Animal Crossing.