User blog comment:ItsAlwaysSunnyInIllium/Do you think Ashley/Kaidan will be in Arrival/@comment-2130363-20110318221410/@comment-730941-20110319060828

I hope they are as well, but given that they've announced Hackett as the main feature of this DLC (and not "get another chance to reunite with Kaidan/Ashley") I doubt it.

Then again, this could all be an elaborate surprise by Bioware, it'd be amazing if Kaidan or Ashley popped up mid-way through the mission and there'd been no fanfare from Bioware.