I hope that Mariah comes back with a bold album. Something strong, new, that's still her, but just a little bit uncommercial - maybe her RnB mixed with Pop, Soul, Gospel - and I would not mind something a little bit electronic.
I would love her to relesase something daring, that's not tailor-made for the Hot100.
AND of course I'd love it even more to see a project like that succeed commercially.
But anyhow, I will love her new stuff, whatever it will be. Mariah has never, never EVER really disappointed me. Even when I thought she had let me down (it indeed happened) it soon turned me around.