Since his unwilling retirement a few years ago many fans have wanted Bryan to return to the ring and felt that if he is good enough to return he should be allowed to, and the WWE's doctor doesn't know anything. Either that or due to the companies current lawsuit against them from both CM Punk & other former employees this could make them want to avoid Bryan being in the ring if he is actually risking severe injury. At this point though most fans wonder if Daniel will leave the company and get back in the ring. However, I do think that if Daniel does return to the ring I don't think that he will leave the WWE or do I hope that he choses to stay just for his safety and WWE being able to best protect him.
With current rumors though it seems like the company is setting up a plan to allow them to protect themselves if Daniel does decide to leave. The current rumor is that the WWE will attempt to turn Daniel heel before his contract expires to try and "damage his mainstream appeal." However, I think that aligning him with Kevin & Sami Zayn if that is how they would turn him I don't think that would hurt him and could actually help keep him fresh. The reason that Bryan wouldn't be affected is because I believe that he would be looked at sort of a cool heel and not really an evil person especially compared to a McMahon.
Overall looking back at Daniel Bryan's tenure following his retirement and the fact that he really hasn't gotten off the idea of returning to the ring. This really has I would assume the WWE has wished that Bryan would drop the idea, but it just shows how little Bryan wanted to retire and that it wasn't his choice. Now do I think that Bryan will get back in the ring. I absolutely do think he will and it wont be in the WWE. Bryan being in a WWE ring again seems to be very unlikely, but the idea of seeing Bryan in the ring again is still likely.