Actually Sega have the license for a number of years, quite a long time if I remember correctly, they can make as many games as they like in this time.
I'm quite sure GearBox are STILL working on Colonial Marines, Rebellion are probably making Alien vs Predator 2... Since it sold a lot.
Anyway...
This is VERY bitter sweet for me... I love creative assembly, have since the very first TW game, one of the best British developers out there. What ever they make I'm sure it'll be awesome.
I also love the Alien series... AlienS is easily one of my favourite sci-fi movies of all time and the design of the Alien and of the drop ships are iconic and have been copied countless times in countless games.
That said I was really hoping for some kind of spiritual sequal to Viking, which I really enjoyed despite its short commings and I think it had so much potential to be awesome.
Oh well, I can't say I mind... Alien is awesome.