Not really seeing it. The thing about The Shield is that it's just a matter of time before things start getting stale with them. By the time WrestleMania is over, they'll have been around for about 1.5 years and when you consider how consistently strong they've been booked in all this time, there's not really any higher they can go as a team. Over the past 1.5 years, they've been scoring wins over or taking out the likes of Cena, Sheamus, Orton, Big Show, Kane, Bryan, Punk, Jericho, RVD, Taker, Mysterio, Rhodes, Goldust, The Usos, Kofi, Big E, Cesaro, Swagger, etc.
Tomorrow night, I think The Shield will lose against The Wyatt Family. It's possible that tensions with Reigns & Ambrose might finally break due to Ambrose purposely stabbing Reigns in the back. It could happen due to Ambrose neglecting to help out the team during a crucial moment while feigning inability to get to them in time. I see Ambrose dropping the US title soon and if he does screw over the team tomorrow night, I could honestly see Reigns or Rollins being the guy to take it from him. I think Reigns would be the one to win the title out of them as he's the one that's gotten the most attention in recent weeks.
It'll be bittersweet to see them break up. It's always a shame to see good things come to an end, after all, and The Shield have been great. They haven't just been dragging on forever as this dull, completely uninteresting group of nobodies that doesn't do anything more than take up time. As a result, to me at least, they still feel fresh and interesting. At the same time, I'm also anxious to see how they're able to do on their own. As I alluded to earlier in regards to their booking, they've all three looked great. As a result, from an overall perspective, I can't really see any of them as being on a different level than the others. Reigns has the best overall look & presence, Ambrose is the best talker & character and Rollins is the most athletic & entertaining in the ring; Rollins also isn't bad on the mic himself.
I remember reading a report late last year alleging that there was talk of keeping The Shield together with Mason Ryan replacing Roman Reigns as the muscle of the group. I haven't read any follow up to on it, so who knows if it's true or, if true, if they've given up on the idea. I like the idea of the team staying together IF Ryan or whomever replaced Reigns could fill his shoes and bring something worthwhile to the group while still being an individual. It's a pretty tall order and it could be lousy.