Well it will be interesting one way or the other. If it does turn out to be Shinryu then it throws most of what we know of how primals are summoned, formed and sustained under the bus. I am still betting on Rhalgr and I still don't think we will fight it. If the WoL could take down this primal we wouldn't have needed the whole seal thing in the first place. Infact if it turns out we can take it down I will be rather pissed we sacrificed an Ally for no good reason.