I will never understand Weaver's denial over not knowing how militaristic Aliens was going to be. It's in the script. Clear as day. Marines with guns. Marines with guns shooting aliens. Yadda-yadda...
I have to agree though, each of the three Alien movies are, if nothing else, fairly distinct from one another in most respects. Though I still think Aliens does a far better job of doing something different from Alien. It reuses some of the same framework as Alien, but it does a very different story with some of the same plot/action beats. Alien 3 is just kind of a glorious mess. Don't get me wrong, I say that with a lot of love. Alien 3, in either of it's two forms, is a mess. It's surprising it works at all given the BTS BS.
I would enjoy another action-suspense story with the Alien, the problem is you have got to get the characters right. Alien and Aliens still hold the best characters out of the whole series.
I'd love to see a 'Predator' style Alien movie. By that, I mean, using a similar plot/story structure, but using the tools of the Alien universe. Humans entering into a hostile situation, showing a high level of competence, and then having that sudden sharp turn where they come up against the Alien and have to deal with it in ways we haven't yet seen. You could have multiple aliens, or just one, but that's where i'd want an Alien 5 to go, personally. If you wanted, you could include Ripley into that, but frankly her character's time has come and gone. Nobody in Hollywood is going to want to lead off Resurrection. Everyone knows it wasn't a critical hit. Even people who enjoy it.
I doubt Weaver herself has much clout anymore, either. It's been quite some time since she did anything that I found to be particularly stellar or noteworthy. No offense intended to her, either. She's done a lot of amazing stuff in her career. Just not lately. Not that i'm aware of. If someone wants to point to something she's done in the last few years that's truly noteworthy I stand corrected.