As it stands, if both Alien: Covenant and Alien: Awakening are successful we can expect another trilogy before the entire prequel series backs into the original film.
This sequence of events makes Awakening not only a prequel to Covenant but a sequel to Prometheus in a prequel series to Alien — which begins to get a bit confusing.
Awakening may fill in those gaps, with Scott also cryptically hinting that while Rapace is in Covenant as Shaw, she won’t be “fully” returning in the film.
This is also the first time Scott has given what seems to be a definitive answer to just how many Alien prequels there will be.