Sounds pretty straightfoward. They're focusing on Alien, Aliens and Prometheus. Resurrection won't factor into things because it's too far into the future. AvP 1 and 2, similarly, are too far in the past. Alien3 may or may not be an influence depending on the story they decide to tell. Any references to Weyland and/ or Weyland Yutani will draw on Prometheus more than AvP.
The Predator films, also in the relative distant past won't factor into things either, other than what they teach us about the creatures.