Ahhhh so this is where the post about a Castlevania compilation came from! Thought it was a joke, since I didn't even hear anything about it until I saw this topic just now (which had been hidding by the floods of E3 leaks/news).
Subbing to see what happens week. A Castlevania compilation would be amazing, but I'm expecting pachinko.
A compilation isn't the only part to this rumor.
An all-new game, and Simon Belmont in Smash, are also part of this rumor.