For AVP2010 and A:CM, we had multiplayer skins, customization, and weapons most of which was dedicated to enhancing multiplayer. Since Alien: Isolation is confirmed to not have any mp, we'll be getting different kinds of DLC I'm sure. I think we'll be getting an Alien statue as a centerpiece for the Collector's Edition; the entire game seems dedicated to paying homage to the original movie and a statue of the famous Alien makes sense. Hopefully, we'll get a steelbook this time (unlike in A:CM which found continuous ways to screw fans over). As for the DLC, maybe we'll get bonus tools/weapons in our fight for survival against the Alien, I hope it's more than just different skins and costumes for Amanda Ripley and the other characters.