The rumored Stasis Interrupted DLC for Aliens: Colonial Marines is due on July 23rd, according to a report on DSoGaming, where they do not say where they learned this. They say the DLC will be preceded by a patch with tweaks and fixes, and offer this description:

The story begins as Lisbeth Hutchins and other passengers onboard the spaceship Legato wake unexpectedly from hypersleep and must figure out why their vessel has been diverted to intercept the Sulaco leaving LV-426′s orbit. Fight your way through the alien-infested spaceship, find out what Michael Weyland is after, and discover what truly happened to Hicks.