I wouldn't say never .
If he is 100 % same old Durant , then the chances are mega slim .
If he returns less than the player he once was , then several opportunities might arise . Who would have thought Cleveland would really be relevant . Weird stuff happens .
Maybe he goes to a team Where he doesn't have to carry the load so much.
If the OKC mgmt can't bring in more younger talent to support , I can see him jumping ship to hunt a better place to win a ring . He doesn't want to wind up,like Mello.