“We’ll somebody else can do that. I don’t want to be known as Mr Castlevania, and we don’t want the team to be known as the Castlevania team. Working in a creative industry, you’ve got other projects and other ideas you want to work on. And that’s something that we and Mercury Steam want to do. We want to work on other projects. We’ve got other ideas. We’ve always felt that when we were given the Castlevania torch, so to speak, that it was never ours to keep. Luckily we got the chance to do our thing, but we were surprised by the success of our game and weren’t sure that we were going to get the chance to do another one. That’s why there’s the epilogue in the first. However, now that we’ve got the chance to finish the story we really want to do it justice and do something really special." - MercurySteam's Dave Cox

Mr. Cox would rather move onto something else, which lead him to once again expressing interesting in working with the Contra brand.

“Like I said, I know there’s going to be pressure on us to do another Castlevania game, but I don’t want to rise to that pressure. I want to do something else. I love Contra. I’d love to do Contra. At Mercury Steam we’ve got an original idea that I think is really awesome. We’d love to bring that idea to market and I’m hoping that the success of Lords of Shadow 2 will allow us to do that.”

Link