Wow, this looks fantastic! I'm especially intrigued by the seamless parts swapping between rigs which has always been a little tricky in Moho when Smart Bone Actions are involved. Keep up the excellent work Mult Rush, and best wishes on completing and releasing this this amazing tool!
Yes. raster rigs are supported. However, image layers should be bonded to bones or smart warp layers, and should not have layer transformation in actions.