We are three trailers in and are still getting plenty of new footage from this film. It seems that James Gunn might have found his perfect project.

https://www.youtube.com/watch?v=W6SSMvR_J8w

So far it seems that Idris Elba might be the focal point of this film, but I still suspect that it might be a red hearing and he might be killed off pretty early in the film.