Hmm... I don't have enough guesses to fill a full line-up since I don't know what the guys require (i.e. - new disc, no recent tours, etc..) if anything. Plus without having the narrow categories of Prog and Power metal like we do for PP, it makes it difficult to guess based on recent trends or popular bands. Could be anyone!
I'll still throw in a few names and see if any of them hit...
Suidakra (why not? I'll throw it in, too)
Cellador
Cea Serin
Miles Beyond
Justdefy
and for some random names...
Mind Rape
Sothis
Butchershop Candy
Birthday Massacre