No, most MMOs fail. At this point it haszeroto do with the game. They could fix all the bugs and turn it into ESO jesus and theystillcould not regain the subs. MMOs are a one shot deal. If your launch cannot retain subs and continue to push boxes past the first free month, you are fucked, plain and simple. Even the games that go F2P generally continue to suck, not because of one thing or the other but because the continuity of the dev team gets skullfucked by studios trying in vain to hang on to the sub model - they give up any chance they have of making the game into something useful by continuing to cut staff and budget to make it profitable until FINALLY giving in and cash shop whoring. By that point, though, there's no vision left except keeping your job so worthless pay-to-view content is all that's on their minds.
It's the same old story of basically every MMO since WoW.