I'm thinking it should be an alternate sequel to Simon's Quest, set after the best ending of the game, since you see Dracula rise once again in that ending. The game will have 8-bit graphics (duh) with smooth animation, and improved control, similar to the likes of Richter in SotN or PoR. Most bosses from the NES trilogy will return, in a more powerful form.
Sadly, like all my other projects, I don't think I'll have the time and patience to complete it.