User blog comment:Commdor/What's Next for Mass Effect 3?/@comment-3258762-20120727144604/@comment-4950455-20120727201744

I seriously, seriously doubt the Leviathan DLC will have anything to do with the Leviathan of Dis. Judging by the extracted files, the "Leviathan" of the DLC is a living, rogue (somehow) Reaper that was being studied by humans, who had apparently been indoctrinated for lengthy periods of time. It's also called Leviathan as a proper name similar to Harbinger and Sovereign. In contrast, the Leviathan of Dis is the Leviathan of Dis, is dead, and was being studied by batarians who were more recently indoctrinated. It's pretty doubtful they're the same.