We already know that Doctor Strange is going to be an important part of the Marvel Cinematic Universe, at least in the short term.
The character will have a significant role in Spider-Man: No Way Home, before going to lead his own sequel, Doctor Strange in the Multiverse of Madness.
It’s certainly not too crazy an idea.
That movie itself is expected to be a big entry, as it will deal with larger story elements that have already been set up in Loki and teased in the new Spider-Man movie.