Gearbox will be trying next year, but for around a decade now, it's been almost impossible to make a better Aliens game than Rebellion's classic series on the PC.
So if new games can't beat the old ones for design and atmosphere, you may as well just copy them.
Modder oldschool.Dave has posted progress work of a mod that brings the classic Marines section of 1999's AvP to Crytek's CryEngine 3.
There's not much action here, since it's just an environment test, but boy, that atmosphere. I'm scared just watching this in 360p on YouTube. 720p might kill me.
Aliens vs Marine [Crydev]