I imagine part of what you're still working on is also wild lines, things for background characters that you'd encounter walking down the hall of an Idris?

Yeah, filling in some of the NPC stuff. And as we do playtests, there's invariably these little holes that you'll discover that you didn't quite think of. And so it's figuring out pickups, patching in: the player needs this extra bit of information, it's a little confusing, how do we smooth that out for them and make the experience better? Can we do that in dialogue? Do we do it in text? Can we do it with environment art? That's a lot of times the best solution, letting the players figure stuff out themselves but just giving them hints. So it's looking at that sort of stuff now.

And just to confirm, that 1,200 pages is just episode one.