I came across this on Blu-ray.com's Alien: Covenant thread.
Audio Commentary by Ridley Scott
12 Deleted and Extended Scenes
5 Featurettes: Meet Walter, Phobos, The Last Supper, The Crossing, Advent
Master Class: Ridley Scott
Audio: DTS-HD Master Audio 7.1
4K Blu-ray: Dolby Atmos
Not much there to say besides if this is official, then we might not be seeing an extended cut anytime soon.