Nope, that hasn’t been revealed to us. They’ve thrown the name around a couple of times, so I think they are really trying (and succeeding) at ramping up our curiosity 👀

They mentioned “Cold Harbor” a couple times in previous episodes, Helena and Corbel, who ever the fat dude is, basically discussions amongst higher management. I initially thought this was the greater plan, the ultimate goal the innies are kept in the dark about. Milkchick and before him Corbel are put under tremendous pressure to complete it. But now I realize they don’t know any better. Cold Harbor is nothing more than one of these files the MDR is working on every quarter, it’s important and mysterious. Milkchick and even Helena don’t know any more than that.

The theory is they are trying to finish the project before kier dies because they plan to be able to reanimate him. I think they were previously using ceos as hosts for kiers consciousness or something.

Whatever “kier” is seems to be shown in ep 4 where irv sees the numbers form an eye thats looking at him during his dream in the ortbo.