Feral doesn't feel like previous incarnations precisely because he isn't; he's from a different hemisphere. Maoris don't fight like Vikings; Vikings don't fight like me when I'm ready to pillage my fridge for that last morsel of jerky. It's MY jerky.
I love the idea of diverse jerky, er, diverse Predators, lends further credence to the blood fueds between them all. Jungle Pred family are all like "We're the TRUE stealth hunters, you ferals are arrogant brutes; you're not true predators." The ferals, incensed yet thoughtful, reply, "You're committing the 'No True Scotsman' fallacy there, kiddo, our human jerky is superior with our more exotic spices mmmm."