I've listened to your last few podcasts. Interesting thoughts.
I think, we really can't infer much about what these new movies are going to be from what has been said so far. The biggest problem is, with the disappointing execution of Prometheus as a story, Ridley Scott & Co are starting from a creative deficit. I completely agree that Giger's aesthetic is a big part of the Space Jockey and the Derelict's allure. The idea that it's just a suit and the engineers are nothing more than big, bald humans was a letdown. But I think the EU and the comics also got it wrong. The original Jockey Chair design really had no room for the Jockey's legs. That does not mean the Jockey was an elephantine creature with long arms and stumpy legs. It's ludicrous. It's more likely Dallas was spot on in his appraisal, that the Jockey was grown out of the chair, providing a living brain for the biomechanical ship.
Now, of course, all that is discarded. EU is always disposable. Ask the Star Wars crowd about that. And whatever we may think, Scott and Fox get to say what it is. They've said we're stuck with big, bald humanoids in suits. So, that's that. And as you say, we're looking at the same production team. Unless something incredible happens, it seems likely the new movie will be more muddled crap and still missing the Giger aesthetic. I do expect at least one scene of ~20 Michael Fassbenders interacting together on screen. Beyond that, I think Blomkamp's movie will be "Aliens: Fan Service" or maybe "Aliens: More of the Same, Now with Big Bald Engineers." It's unfortunate as this new life for the franchise should be invigorating. We'll find out soon enough.