What makes you think it is in development hell?
Just because we haven't heard anything about it for a while doesn't mean Marvel hasn't been working productively on it.
Although I am very invested in the MCU, I don't understand the internet's insatiable need to know everything that Marvel is...
Surprise: According to The Hollywood Reporter, Marvel has decided to make Armor Wars into a theatrical movie instead of a Disney+ TV show. The head writer who was working on the TV version will write the script for the movie...