Though some people are passing this off as a fleshed out game consisting of features that are mere minigames in both RE4 and 5, the new trailer shows more polish than grime.
RE: Mercenaries 3D is an upcoming 3DS title that aims to not only showoff the 3D aspect of the device, but to also put the popular minigame in your pocket. The game also utilizes the MT Framework engine used in RE5 and Marvel Vs. Capcom 3. The trailer shows the intuitiveness and update of the control scheme of the game. Notice how Jill and Wesker -gasp- move while aiming?!
The game includes maps from RE4 and 5, and includes Chris Redfield, Jill Valentine, Albert Wesker, Jack Krauser, Claire Redfield, and Hunk.
It is set to launch on June 2, 2011.
It was also announced that a demo of Resident Evil Revelations is coming packaged along with the game.