Complex sentence: The four Batmen neutralized Equinox and the Batman of the present returned to existence, but Equinox'consciousness separated into 12 fragments means that they haven't heard the last of Equinox.
Split into simpler sentences: The four Batmen neutralized Equinox and the Batman of the present returned to existence. But Equinox'consciousness separated into 12 fragments means that they haven't heard the last of Equinox.