They'll lose to the Wyatts at the Elimination Chamber and it'll be a crushing loss for them but they'll still try and maintain composure. Shortly after, however, they'll split. The split will probably go down the next night since it's the night the Network launches and they'll want to make that Raw as big and significant as possible. I'm just wondering how it'll all unravel because the rivalry and tension is really between Reigns and Ambrose with Rollins kinda stuck in between as the middle man.
I can see the match at EC going down like this - about halfway through, Rollins takes a nasty bump headfirst into the ring post and has to be carried out of the match, leaving only Ambrose and Reigns to fight the rest of the bout themselves. Then at the end, Ambtose gives up on it and walks out, leaving Reigns behind to be demolished by all three of the Wyatts. Fast forward to the next night, Reigns is angry as hell and wants to know where Ambrose is. Rollins tries to keep the peace and it might even look as if Ambrose and Reigns are both brought to an understanding with one another in the ring and both pretend (or at least Reigns 'pretends' while Ambrose shows a 'whatever' sort of apathy towards it) to have resolved their differences, but then to a huge pop, Reigns turns around and hits Ambrose with a huge spear instead. He walks away with a smirk (with the fans chanting his name, hopefully) while Rollins checks on Ambrose in the ring to see if he's alright. And this is officially the end of them as a three man group, (I have ideas on where to take it from here, but don't want to type too much at the moment.)