User blog comment:CrimsonShogun/Omega DLC (and Nyreen!)/@comment-5607736-20121109172245/@comment-4807396-20121110032200

There ARE hints to a Citadel DLC inside the Leviathan game files. These same files hinted at Omega, and they turned out to be right on that one, so it's quite possible there'll be more SP DLC.