FF4 Still Haven't Decided Any Roles

Fantastic Four director thanks fans for spouting their casting roles, but apparently they still haven't made any options yet. So, the question is are the FF4 young or old? In a scenario with a older team, I believe it will take place in another universe, cause it doesn't work in any other scenario. While a young team, like 2015's, was a absolute failure.
https://wegotthiscovered.com/movies/fantastic-four-director-speaks-out-on-those-rampant-casting-rumors/