Shang-Chi part of Phase 3?
I know this is a very iffy source but, when looking up Kevin Feige in IMDB, the second annouced title, right under Dr Strange is: The Hands of Shang-Chi.
"A shared universe, like any fictional construct, hinges on suspension of disbelief. When continuity is tossed away, it tatters the construct. Undermines it."
-- Peter David