Honestly I don't know how good that'd be let alone how well it'd be recieved but judging by the idea.
This is basically like a Godzilla and Exorcist (Yeah inaccurate but first thought that came to mind to successful paranormal film prior to current generation of film) crossover. Odd but in the right mind, Godzilla can be controlled by a demon...Hopefully this demon doesn't scream like a lil B.