I still can't believe that Ninjago Season 6 is finally here!!
I've already watched episode 55 and 56. It was totally awesome!!
As you might already know, pirates are the ninjas' next enemy. In the first two episodes, I saw two pirate pictures. The first one was in the injured boy's room. The second one was at the library. (Credit to @Wereweazel)
I don't know if it means something. But in the end of episode 56, we saw that the ninja are being taken to Krypterium Prison.
I found a pic of Jay. I'll post it in the next chapter.