I think Im flipping out over MCSM Season 2. Just a little XD. But I did even more research! Look closely at this picture.

You see Lluna the Llama, next to Petra, right? Look closely at the enterence.

Lluna! So I saw a video talking about Lluna, and he said the same thing. So one of two:

1. Petra stole Lluna (The princess) from Champion City, (But she wouldn't be walking off casually)

Or

2. Petra is the Mayor of Champion City, and the citizens are going crazy against each other, and Lukas is the peace keeper.

What do you think? Or do ya have another theory? (Also the video is above)