If you are whole goal is to push Roman Reigns as the man in the company, you would be a moron to put Daniel Bryan in the Rumble. And before you start the "he could help him get over" they tried that last year at this time and it kind of worked but not by much.
There is no ultimate gain in bringing Daniel Bryan for the Rumble except to piss off people or just completely punt the McMahons/Reigns angle which will never happen