Tim Miller Set to Direct Alien Legion

Tim Miller is set to direct Alien Legion.
Cool....it'll be his...third movie. An what or who is Alien Legion?
Oh, it's Epic Comics story. I'm down with it...and you want it to be a franchise. For the love of god, just make one singular movie with a ending, then plan a sequel if it makes money.
https://www.ign.com/articles/deadpool-director-making-alien-legion-adaptation