I'm kinda hoping we get a new Moriarty I'm not saying have Irene revealed to be a fake. I actually came up with this idea at the realization that Irene was caught and unable to run her organization. I kept thinking what if some no named criminal stole her organization from her and stole the identity of Moriarty. I think it would be interesting especially if no one knew anything about him and couldn't out smart him not even Irene this way James Moriarty could become a living mystery for Sherlock Holmes. Ideally having this character be a mixture of The Joker(Dark Knight) and Moriarty (Sherlock) ideally having him be American.