Nah, Rickman's too obvious, especially in the new pseudo-realistic Bond set up, besides what could he do with the character that he hasn't already done in Harry Potter, Robin Hood or Die Hard?
Unless Daniel Craig leaves and Bond reverts back to the comic book style that went before I don't think we'll see the same sort of villains of our childhoods.
I also like Hugo Drax myself, polite, refined, ruthless and utterly insane. And I'm not just saying that because I'm wearing his watch...