Almost there (though its not like I haven't watched the slowed down versions of the trailer a dozen times already). The human ship shown is the "Magellan" . The four engines appear to swivel like a jump jet,so I'd guess its like the Nostromo,the landing craft part of the much bigger ship.
The more I see of Vickers the more I think she looks like a female counter point to David ,so is she a company android as well? Certainly there are a lot of people looking "changed" or in the process of being so in these clips so you can take your pick.
I also don't think the alien ship we think is the derelict IS the derelict, not if this is all taking place on one planet. The huge mountain range with snow on it couldn't be the original planetoid from Alien, its just too large. Also the jockey ship appears to be subtle different from the original, though it could just be the camera angles. The tips of the horns look wrong. When it comes crashing down the surface doesn't look like the planetoid we know , though it does appear close and they may yet add texture to it.
More questions than answers I'm glad to say but thats part of the game. The Futures not Perfect.