Board Thread:Theories and Rumors/@comment-30938718-20180720095904/@comment-30938718-20181213144141

Warptoad wrote: They didn't change the timeline. It was just a joke: https://twitter.com/TommyAndreasen/status/1017109278128328705 Also the old designs are never coming back

But I doubt the darkness Garmadon saw in the Departed Realm is the Time Twins, or that Lloyd saying the Oni are coming is a lie. It makes the most sense that it continues the Oni plotline. Inside of the show they could have still changed the timeline.