How long do you see The Shield going on?

To me, The Shield is the best thing going in the WWE today. I'm a huge fan of all three men, especially, Ambrose and Rollins. They've been nothing but stellar since their debut and continue to show how talented and promising they are. I honestly wouldn't mind if they stay together another year or two but I'm not so sure with how WWE operates nowadays that that'll be the case. There's a lot of discussion of Reigns becoming a big star by next year's Wrestlemania so that right there makes me believe they'll be broken up by then. In my opinion, Ambrose and Rollins are the more talented members. Ambrose is a damn good mic worker and I love his promos. Rollins is good on the mic as well, but I love watching his in ring skills the most. So I hope they both have as huge as success on their own as Reigns is suspected to. Anyways, how long do you think The Shield will continue on? And how do you think Ambrose and Rollins will do on their own? I think a singles run from both men would be just as amazing as their run with The Shield have been.