Well blomkamp I would dare to say is a one hit director, ever since district 9 he has tried to replicate that success, chappie felt like same ideas: make it documentary style and a movie with a message of life is holy even as AI and is wront to terminate it and then have action scene at the end.
Robocop movie felt like a good test to see if he could deliver and be a director that would be able to handle a movie like alien v but as its cancelled and he havent done anything since chappie I would say he isnt the guy for the job.
Also his movie so far seems like a fan movie of aliens v2 with more of that and kenner toys tribute and alien suits and ripley back with hicks and newt and controling xenos with the helmets on their heads and very strange movie and making the xenos silly to me. And this last picture of a human in a queen like suit but much smaller, sneaking onto a queen and xenos ignoring a human for some reason like the kenner toys just feels weird and wouldnt be a good aliens movie.
Covenant was to me a better movie although it did piss off more fans around me than prometheus did, but I take that any day than a new aliens v2 movie that is safe and please those fans but I fear those are way more than us who want unique horror movies xD