Larian Studios, Obsidian, or FromSoftware should make another Ultima, with Lord British as a consultant. EA just needs to let that property go.
Ryu ga Gotoku Studio should make Virtua Fighter 6. They did a lot of the work on VF5 Ultimate Showdown.
Obsidian or FromSoftware on the next Fallout. Preferably the latter so it would hopefully be less likely to be tied to Xbox.