Board Thread:Theories and Rumors/@comment-35352648-20180525043206/@comment-3214109-20180525074129

Warptoad wrote: Yeah I'm pretty sure I already got the end of the season figured out: like, they have to neutralize the effect of the Oni Masks somehow because it's the only way to defeat him, which would of course kill him again but also bring his good side back. Ghost!Good Garmadon (maybe now with a more movie-like design, like man-bun Movie Young Garmadon but as an old man) and Lloyd have one last heartfelt conversation, then he floats into the air and disappears back to the Departed Realm.

That makes sense.