What can the creators tell us about how easy it would be to use Pathfinder's Bestiary monsters as opponents for the PCs in this system? You could easily mix these two up by running an zombies/ghostbusters type of campaign, or maybe a DooM-like scenario using demons and devils, or maybe something futuristic like Spelljammer/Dragonstar (space elves, etc.) but relying on technology for everything instead of magic.