We're lost

Ninjago has finally been saved, Garmadon is a good guy. There has been no word about the Serpentine, and the Overlord has been sent back to the Dark Islands. But, what happens next? The Ninja continue on there everyday lives? Everything goes back to normal? Nope!!! They meet some mysterious friends and because of the information they give them they end up having to save the world.....again.....from....the....Ov erlord.....again. Hooray!!!!! (note sarcasm)