The game looks good but definitely best to wait and see the reviews first... from the video I watched ages ago I understood there will be human enemies to kill, so perhaps that could make up for the lack of aliens.
There is deffo synthetics in the game and more than likely humans to go with them so their is deffo more to kill than just trying to escape the Alien. (Although for me I hope their is not to many human or synthetic interactions to take away the survival horror side of things and move it back closer to being a shooter as I think that would be a bad move).
I have much higher hopes for this than the other Alien titles, People have actually played the game/demo and said it was very good, Alien Colonial Marines looked very good before it was released but when the game came out it was a completely different game and that left a sour taste in the mouths of people.
I'm not saying this is going to be the greatest game of all time but I'm pretty sure I'm going to enjoy playing the game when it gets released, I will probably wait a little while for it to come down in price though as when it's due out I will still be playing through some other games.
I'd love and hate to play this and the new Silent Hill game with an Oculus rift.