http://pic.ipicture.ru/uploads/090218/aIZQo1IOL7.jpg
Looks like it will include Raiden and Vamp. There are 3 new maps too, they're called Outer Outlet (OO), Ravaged Riverfront (RR) and Hazard House (HH).
Now, discuss! Do you think that Vamp will be immortal? I mean, yes you can shoot him and kill, but he won't go back to his spawn, he will be lying at the same spot he died and you will have to move L3 to get up his health - like Mk.2 in SNE! That would be awesome! Oh and I think his weapons will include throwing knives. Well Raiden can have a blade and maybe something simmiliar to Solid Eye.