Well it's a stretch, but maybe the severe weather conditions on the planet were enough to age the ship to the condition we see it in Alien.
It certainly could be a different ship (with tons of identical ones being sent out across the universe to "seed" different planets with different organisms or something), but at the moment I'm still inclined to think it's the same ship.
Because why go through the trouble of recreating such memorable, iconic sets and NOT have them be the same ones we saw before? It just seems kind of odd to me.
We'll have to wait for the movie to come out to see. For all we know the film is about finding a whole fleet of these things. All we've seen after all is a *teaser*, not even a full trailer and it wasn't exactly shy about recalling imagery from 'Alien'. For all we know, every shot is totally (and intentionally) out of context to provoke a certain response.
Remember, teasers and trailers are meant to make you want to go see the film! They're not supposed to explain the entire plot.
Personally, I think it's a different ship. Still, I'll admit that the odds of two human vessels running into two of these things by chance in the space of a few decades are pretty slim. Whatever the circumstances, I highly doubt the two incidents are entirely unrelated.