Soundwave on 22 January 2013
My guesses:
Lots more on Wonderful 101, Rayman, Pikmin 3, and Made In Wario
New Nintendo TVii and Google Maps stuff
Virtual Console formally shown for the first time
Panaorama View
Resident Evil Revelations + other Resident Evil coming to Wii U
Monolith RPG or Bayonetta 2 shown.