I think this is probably more five act than three act, and we're (finally!) moving to Act III. And I haven't tipped my hand to anything that wasn't heavily hinted already -- seemed better to make it fully explicit, as opposed to teasing people or dangling a series of potentially manipulative cliffhangers. Hopefully the how and why of what happens, and subsequent fallout, will be more compelling than the fact that these guys part ways.
Thanks so much for your ongoing interest and enthusiasm, guys. Can't tell you how flattering it is and how much I appreciate it.