Throughout 2014 and into 2015 Titan Books republished all four of Alan Dean Foster and A.C Crispin’s adaptations of the Alien films to accompany their own original Alien novel trilogy. It would appear that to accompany their new Aliens vs. Predator novel trilogy, Rage War, Titan will now be republishing some of the older Bantam novels:
These are currently the only 3 omnibus available on the Titan website and they cover 7 of the 9 Aliens novels that Bantam published, leaving Music of the Spears and the very hard to find Berserker to potentially show up in a fourth omnibus. These novels were all adaptations of Dark Horse comic series of the same name.
The first is due for release on 19 January 2016, with the second slated for release 28 June 2016 and then finally the third on 27 December 2016. There are currently no dates for the last 2 books (Alien: Invasion and AvP: Armageddon) of the Rage War series but the first, Predator: Incursion is due out shortly on the 20th of October. Thanks to Jean-Francois Boivin from Timeline of the Alien and Predator Universe for the tip.