Ahh, yes, the Serpent and the Rainbow! /s
I've actually been wanting a mummy-focused spinoff for a long time now. Imhotep is my favorite of the old monsters, and the revival scene is one of the best of the old movies. Imagine a museum facade...archaeological dig...Imhotep with the knife and glowing eyes..
Regardless, I think House of Dracula would be a pretty safe bet for a movie, right? Seems like a good followup to FMTW.