If its medieval fantasy influenced then my guess is we'll see some metallic PVC for armored up figures. My personal preferences would be to see either ultra silver or gunmetal again but I'd definitely welcome a metallic blue to the mix, specifically the one SpyMonkey used for their
Optimus Gearo figure. I'd personally like to see the LSA or Dark Traveler return but this time with Glyarmor.
I'd honestly be surprised if we don't see Skeleden return in some form. That leads me to another thought, I think it'd be cool to see a Harryhausen inspired wave. Several OSM could be used like Horrorscope as Medusa (just needs her lower snake-half made from axis joints) and Cyclops as, y'know, the Cyclops. Something bulky like the Kabuto Mushi could be the Kraken. Skeleden or more Titan Skeletons could be used to gang up against the hero to battle. A gold & silver Crayboth could be the hero's sidekick too. Honestly, thinking about all this I'd be cool seeing an amalgamation of Harryhausen and Golden Axe. Excuse my rambling guys