According toDeadline, Marvel is "fast-tracking" Shang-Chi to be their first tentpole franchise with an Asian hero taking up the title role. The script will be penned by Chinese-American writer Dave Callaham, and the studio is currently considering a number of Asian and Asian-American directors to helm the project.
Callaham's resume already includes a couple of superhero-related bullet-points. He was a co-writer for the upcoming Wonder Woman sequel: Wonder Woman 1984, and he's also helped with Marvel's script for Spider-Man: Into the Spider-Verse 2. On top of those he put together the initial draft for the soon-to-be-produced Zombieland 2, helped re-write Ant-Man, and wrote the first draft for the newest Godzilla reboot.
Deadline adds that Marvel is planning to follow-up on the strategy they used for Black Pantherby introducing "a new hero who blends Asian and Asian American themes, crafted by Asian and Asian American filmmakers." Additionally, Shang-Chi's on-screen version will be "modernized" to avoid stereotypes a number of minority comic characters were given back when they debuted (Shang-Chi made his first appearance Special Marvel Edition #15 back in late 1973).
As is the case with more unknown superheroes you may need a very, very basic buffer on Shang-Chi. Well, according to Marvel's website (possible spoilers...maybe):
Shang-Chi is the son of an internationally-renowned and powerful criminal mastermind. His childhood was a lonely one, full of constant training in rigorous mental and martial arts and with only limited contact with his parents.
For more info, here's the extended rundown from Marvel.