The reason I think there's a (small) chance that this could be good is because the alien from the first film is different from those in subsequent films
Is it? I know there's a load of zoology bollocks in the comics and that defining the species, but in the films you've got Alien-that-kills-people-for-some-reason (Alien, Alien 3) and Alien-that-grabs-people-to-gunk-them-up-and-put-an-egg-in-front-of-their-gob (Aliens). I forget what happens in Resurrection (and the AvPs) but they're a mix of the two, right?
Oh, and big-fuck-off-Alien-that-lays-eggs-and-gets-mardy-if-you-disturb-it, obv. That's in at least three of 'em.
Going back to one-Alien-hidden-in-a-place-ooh isn't exciting because we've done that twice already. The proper-full-on-action-film option is still sort of open (despite Aliens reputation, it's actually pretty sedate and subtle,) and something we haven't ever seen is what happens when The Company does actually weaponise them. But then you'd have trouble avoiding comparisons to Starship Troopers.
The thing I'm most interested in about the prospect of this film is how they can find an interesting angle because I can't see it. (Ripley-again-but-this-time-with-some-stuff-on-her-face isn't it.)