Coming up with a good campaign for an AvP movie isn’t that hard. Show the Alien. Show the Preadator. Perhaps show them fighting. And you are done. These two creatures have so much story behind them that getting people interested and invested is easy.
In that sense, these new posters work. They are too colorless for my taste, but they still manage to showcase the Alien and the Predator, and they both look cool. But I would really have liked to see them try to go beyond the safe, good enough choice. In part that is because the first film was very bad, and I would like to see something that made this one seem different somehow. Something that showed that they had the right idea this time. But it is also because I really think that if they went beyond the obvious they might be able to do something truly amazing with these two and the whole iconic story they bring with them.
But maybe that is too much to ask from the posters. And like I said, these aren’t bad.