I still stand by my opinion that B't X is still and will keep going to be Kurumada's real magnum opus: It is a very powerful story that has everything Kurumada wanted to do with Saint Seiya, but wasn't allowed to in his Shonen Jump days; he could publish the manga from start to finish without any hiatus, and he even helped the animators at Kadokawa in writing the story for the B't X Neo OVA.
With that out of my chest, I don't think this is the end. For one thing, there's the conversation between Artemis and Apollo that didn't happen in the movie. And Apollo, while looking really pissed off, actually seems to be a decent fellow this time around. He's mentioned as being biased on justice and punishing Touma for being too violent. Kurumada's vision of Apollo kind of reminds onf Nento from the Houshin Engi/Soul Hunter manga.