Karo,
Yautja,
17 years ago
Ridley Scott says on the commentary of Alien that he always thought a fifth Alien movie which showed their home world would be a very interesting idea and that if he were to do it, thats the direction it would take. He has obviously never committed to such a project, and that commentary is a few years old now.
I think that the Derelict space craft was an excellent way to introduce the species as some sort of locust that has been foolishly spread across the universe. I wouldn't mind seeing their home world in a film, but my view of them as a concept now is just fine.
Seeing the Predator home world just doesn't sit right with me, it would be like when they showed Kashyyyk in Revenge of the Sith haha, it was way kooler when they showed it in the 70's. If the first Predator film showed a glimpse of their home world, it would have at least been tastefully done, not some CG Machine city bullshit that we would undoubtedly get these days.