This might sound strange, but I would really like to see a sequel to Disaster: Day of Crisis for the Wii U. However, unlike the original game this one would be developed by a western company (not Retro). This alone would make it much better than the original, but I really like the premise of that game. It's poorly executed design and presentation is what killed it. What I am looking for is a game with the open world gameplay of say a game like GTA IV coupled with Arkham City and graphics that push the Wii U hardware very well. Of course this will never happen, so it is relegated to my imagination.
Nintendo and Sqaure should allow Monolithsoft to make a sequel to Super Mario RPG. Nintendo would provide the funding, Square would allow their IPs to apear in the game, and Monolithsoft would provide the grunt work. The game could be marketed in the same way that Kid Icarus: Uprising was marketed as if it was a brand new IP totally unrelated to the original, but is in fact more than related to its predecessor.