To add to the those rumors regarding the console sequel:
That Castlevania game is rumored to be non linear like Darksiders or Arkahm City.
The new engine will have better framerate, better image quality and bigger enviroments with little to no loading.
The PS3 version is the lead platform and while the 360 version runs fine, it will require disc swapping again to access eariler areas.
Plot, setting and protagonist is still up in the air.