Shang-Chi And The Legend Of The Ten Rings teaser trailer

Shang-Chi And The Legend Of The Ten Rings brings the Master Of Kung Fu to the MCU, tying back all the way to Iron Man setting up the Mandarin and Ten Rings and that being undercut in Iron Man 3.

Original comics Shang-Chi is the son of Fu Manchu, so his MCU parentage looks to have changed for copyright reasons.

The teaser shows a mix of modern cities for action, ancient castles for big fantasy sequences, beautiful forests for wuxia battles and the like, several martial arts styles all at play. No sign of any hinted MCU crossovers so far.