Just a random idea I had : I think it would be epic to port wargreymon over... Ike. I mean he wouldn't have a sword but since he have giant claws, Ike's animations should look fine (except B^ and his side taunt).
(Edit : Doh ! I've read about model swapping in
this topic and learned it seemed to be impossible

)
By the way, Gary and his team are awesome, especially Blastoise.