Yeah, Moriarty's endgame will be a ways off, and even if he's gone who's to say the fun stops there? :p Could always be an associate or something, never have to leave it at only him.

And yeah, I always thought of Irene as looking out for herself, and helping those who were convenient for her. I could see Moriarty blackmailing her, though maybe that isn't necessary until she begins to question what she's doing. She could try openly denouncing him, or threatening him somehow and he goes and turns the tide on her, so to speak. 

We do, we do :D It'll be a complex web of lies, broken promises and a bloody trail leading to the proverbial chalice at the end of the dungeon! Or something like that. Sleep addled, incoherent, thoughts dwindling, and the squirrels are looking for me again u_u