I think Ridley Scott is clutching at straws here.
" the sequel was originally scheduled to begin pre-production in September 2017 but was shelved after the tepid box office response to Alien: Covenant"
"The sequel to Covenant was originally due to start preproduction this month in Sydney. After the box office results filming was cancelled, and a warehouse storage unit full of stuff was auctioned off a few months ago. So the original plan of pumping out another quickly has definitely changed with no immediate plans for anything." (reffering to Prometheus items auctioned off as code that the film had failed).
Also Ridley Scott cancelling his "ALIEN- PARADISE" film that would've been an exploration of the Engineer homeworld.
Listen. Get Disney to make Blomkamp's ALIEN-5 but let's get real not going to happen due to Weaver's supposed AVATAR 2,3,4,5,6,7,8 schedule and Michael Biehn collective ages.
Here's what we need.
Expanded ALIENS universe akin to Dark Horse comics based on Blomkamp's concept art, scale and tone. Skip the "Xenomorph Jurassic World raptor squad", or Ripley's biomechanical suit, daft idea.
Make an AVP3 set in the future. Make it dark, violent, using weapon's from ALIENS and updated Minigun from Predator.
Profit.