The Japanese Nintendo Direct yesterday has revealed more info about Mario and Sonic at the Rio games, such as new characters and Japan already has a release date!
For starters, not only Zazz, Sticks, Jet, and Rouge are confirmed as playable, but it looks like Wave is confirmed playable as well, as shown in this screenshot, she's at the way right, and she does not have a new outfit. The Egg Pawn is also confirmed to appear.
From the Mario side, Dry Bones, Rosalina, Wendy, and Ludwig are playable characters too. Here's the 3DS trailer, Japan has a release date: Feb 18th 2016.
The promotional (and box art) has been updated, featuring more characters, including a certain badger, Sticks!
There's no news about the Wii U version at all, it might be delayed. What do you think about this?