New humanities is genetic modified like GMA corn (sorry had to add that one, lol). Even though it's humans vs everything else currently I do expect a possible one world of humans teaming up with one of the monster worlds eventually as a twist in a future story line (what groups I don't know). I made a list of all the worlds I think on the second or third chapter with my theories on how this might go and how I tiered the predators, but then I expect ONE to surprise us and add a few more and as I mentioned maybe have odd traitorous alliances as well.

Especially when you consider that the 47 heroes weren't even the real plan, they were basically sacrificed to distract the demon lords from the mages while they carried out the *real* plan.