So far, these are what they've done.
Released by Hot Toys:
Resident Evil 5: Sheva and Chris, Wesker, 2 different Jills+EX Jill.
Assassin's Creed: Ezio
Resident Evil 4: Leon & Krauser
I think that's all so far.
Although they announced Metal Gear Solid, but there were never any photos of the prototypes.
At least for Batman, Arkham City, they show prototype sculpts.
I'm excited about this. Hopefully they are making Catwoman too.