Here are my thoughts on the new sets:
The Flaming Foundry: The sets ok and you get Red Son, Princess Iron Fan and the Demon Bull King, but I wish the base had a regular entrance instead of a truck and a pre cyborg Demon Bull King.
Monkie Kid's Cloud Roadster: I wish the Horned Brothers had an actual vehicle instead of an after thought vehicle, the roadsters ok and the Brothers are good.
Sandy's Speedboat: The Spider Queens good, her cave is tiny and Sandy's boat is just ok.
Over all the new waves ok, but I think the first wave was better, the lack of city buildings, the Brothers having a vehicle thats made of spare parts, the Spider Queen not getting a proper cave and the foundry having a truck for an entrance, just make this wave ok.