Board Thread:Questions and Answers/@comment-26739460-20150721142117/@comment-26509603-20150811005044

GCBomniverse wrote: Also to add on, since it has been confirmed that Skylor will have a more important role, I believe she will completeley join the team as the official sixth ninja, but since the Ninja are wanted in Season 6: Piracy, maybe her new important role is helping the ninja hide or something, or she helps them fight back. Anyway, my other idea is that the new ninja joining the team might be Seliel, aka the Phantom Ninja from the Ninjago comic, because on the back pages, one of the guys on the Ninjago comic crew said there hoping that Seliel might get in the show. Maybe the 6 means Season 6. Just a thought.

I don't think Seliel will join. The comics are noncanon. But, there's always hope.