What do you think the pyro snakes and ice samurai are.
I think think the ice army are just people that have adapted to live in the icy conditions of the kingdom of neverland. and the pyro snakes are just serpintine that adapted to live in the destruction desert.
I believe that the second minifig is of the FSM. But, I don't know why they would release a minifigure of the First Spinjitzu Master because he died before the series's events, and I don't think that they would revive him.