Possible Doctor Strange uber-villains

As said, these are just speculations – but Dormammu is almost immediately mentioned by the fans. The interdimensional demon is a likely candidate because he is also one of the most powerful villains in the Marvel comic books, thus actually having the pedigree to replace Thanos as the biggest threat in the MCU.

If that is the case, we can expect a couple of hints and teases to be dropped in the movie, with maybe even a credits scene showing him in his full fiery glory.

Another name which pops on the web just about as much as Dormammu is Nightmare – though there isn’t too much evidence in the trailer to suggest that he is indeed going to show up later on in the MCU.