Let's look on the positive side of the situation:
Bryan is the currently most over guy in the company, and arguably the most over guy since Stone Cold. He's destined to have a big year.
They're creating new stars in the form of Reigns, Wyatt, Bryan and so on.
The tag team division is looking great with The Usos, The Brotherhood, Real Americans, NAO etc.
Divas matches these days are MUCH better than they've been in years, with The Bellas, Naomi stepping up their game in the ring.
Rollins and Ambrose won't be cast aside, they both have great futures in WWE, even a blind man could see that. Just because they're not going to be main event stars by this time next year doesn't mean they're going to fade into obscurity, they both have too much talent for that to happen.