Everyone knows a new Smash Bros game is on the way, and Snake was put into Brawl because Kojima personally requested and begged him to be in it.
That being said, it's evident Nintendo and Konami have some very strong ties, so if MGS could gain a presence in Smash Bros, then why not Castlevania? What can the fans do to get the message out there we want to see one of the Belmonts go toe to toe with the likes of Mario, Link, Samus, Captain Falcon, and many others? Dracula's abode is just begging to be a stage, imagine what they can do and all the fan service we could get from it!
The next Smash is still very early in development, so if there was ever a good time to get some noise started that Konami and Nintendo couldn't possibly refuse to listen to, it's now.
What would you like to see Nintendo and Namco Bandai do with Castlevania if they allow the IP a generous spot in their big plan for the next installment in the series?