The most recent issue of Nintendo Power contains information on the next Castlevania game, Mirror of Fate, that's headed to Nintendo 3DS. The game sees Trevor Belmont as the main protagonist, and the game that is reminiscent of Castlevania: Lords of Shadow, and there will be several magical spells to learn, and you can learn more skills as you collect experience.
Konami are planning to hold a pre-E3 press conference tomorrow, and that's when we'll get more on Mirror of Fate and a possible sequel to Castlevania: Lords of Shadow.