According to Dutch Nintendo site N1ntendo Konami revealed in their E3 Appointment schedule that Castlevania: Mirror of Faith will be announced exclusively for 3DS. No details at this point, other than David Cox, Producer from Lord of Shadows and Enric Alvarez, director/writer of the same game seem to be working on the game.
Dutch source:
http://www.n1ntendo.nl/article/38050...-maak-voor-3ds
Edit²: Apparently, Konami didn't like this
New link
Edit: crap, forget the 3DS part in the thread title, mods please help?