I feel Grasshopper give them a modest budget, does not have to be AAA but maybe AA. Let them develop a Deadpool action game. There was one on Xbox 360/PS3 from High Moon Studios and while it was ok even tho annoying at times in design. The writing sucks. There is a balance to Deadpools humor and with the No More Heroes titles esp you can see they know how to make an asshole mouthy protagonist work who breaks the 4th wall.  Not to mention they made some solid B tier action games and that is more than enough for Deadpool. Hell can probably keep Robin Atkin Downes for Wade Wilson. Does not have to be him. Cast whoever is good. Just , I think Grasshopper is the perfect developer for that humor. Gives us a fun game and be wonderfully bloody.

This thread can be about any kind of IP. Other game series. Licensed or not. 

I would love to see an all new Starfox game by Treasure, in the vein of Sin & Punishment 2; this ability to craft hectic action sequences would fit in series like a glove.

Shin'en would make a terrific F-Zero.

Just let Sandfall make the next FF or From Software make the next Elder Scrolls. I am sure they would be great.