At the moment, there’s Alien: Covenant in the works, a sequel to Prometheus, itself a prequel to Alien.
Second, Weaver pretty much confirms the upcoming film will not link in with 3 or Resurrection (probably for the best).
The project has been on and off for numerous years now, fans confused whether it will act as a sequel to Aliens, Alien 3 or Alien: Resurrection.
Recently, a ‘spoiler’ regarding Scott’s Alien: Covenant spread online, seemingly revealing important information about Katherine Waterston, linking her character to the original film.