They "want him" but after Looper they can't afford him, unless this movie is going to be a lot more expensive than I imagined.
Sorry, but when you say Marvel Movie I still imagine "Direct to Video" bullshit like Generation X.
Strange has anew girlfriend/Apprentice in the comics, which ties Strange into the X-Franchise. It could just be fantastic story telling, but it could also be, however so unlikely, Marvel positioning the movie rights to intrude the Doctor Strange with the current X-Men movies.
When I was younger, the cloven hooves used to be a problem, but after dating for some years as an adult, I got used to it.