Perfect Effect has updated their Facebook page with their next upgrade sets for the new Power of The Prime combiner figures. PC-21 will be new hands and feet for Volcanicus and PC-22 will be new hands and feet for King Starscream. Also shown is a grey protoype picture for PC-23, which will be an upgrade set for the torso of Volcanicus. The set appears to fill out Volcanicus a bit more and will hopefully add some additional stability. The set will also come with a giant freaking sword so Volcanicus can smite his enemies.

Here is the breakdown for both sets:

PC-21 Upgrade Set for POTP Dinobots

PC-22 Upgrade Set for POTP Starscream

Release in March/2018

Product Features:

* Gear joint

* New mold

* Transformed into the arms