If this is coming out really, I hope that will be a Rpg-Platformer like Super Paper Mario and not only RPG (I think I am the only DS' Owner who hate RPGs).
I'd say Commando Steel Disaster (metal Slug clone but seems good) and N+ (remake of a flash game)
Ah you mean the ones that already come out? So Metal Slug 7, Soul Bubbles, Trauma Center 2 and others.