I hope it leads to a significant change in the way the Jedi do things, though. Pre-TFA, I think we all expected/hoped that Luke was the first of the new kind of Jedi-- one whose Order would do away with the detachment, rigidity and even political affiliations of the old one.
What I would accept now that we know what we know about him so far, is that he hunted down as much knowledge of the old Jedi ways as possible and tried to replicate them as best he can, thinking it was simply the right thing to do. That it was exclusively the Sith that destroyed them, rather than it being a combo of them and something turning rotten at the core.
So once his Order's destroyed, Luke's finding whatever he needs to find at the First Temple and Rey helps him get over his funk and out of the "the Jedi must end" mindset, he sets out to create the Order we expected. Plus that way it will feel like a true evolution of the OT, and avoid those pesky retread complaints.
TL;DR: I'm sure the Order will be rebuilt, but it should take a notably different form from Luke's original and the PT era for the sake of the arc and creating a fresh-but-familiar and creatively potent set up going forward. Plus it would feel like a natural evolution of the OT, rather than a potential retread or obviously delaying the return of the Order so that we can see it on-screen.