Funny that this dead thing needed confirmation with this entire funeral thing going on at the end. I mean what did you people expect? Him being alive and hidden away from the public eye? Wouldn't everybody who would have taken part in this have seen through Gordon's lie about Batman in the end?
Either way, I'm all for the "realistic" villains for this series. I love the continuity Nolan has created and would love if it keeps that way. A Riddler in this fictional universe's style would definitely be a thing I'd like to see.