My overall prediction is that the genre will literally leap from fantasy to sci-fi.
That the world is actually far future - that various technological societies developed the means to cast a sort of damnation internet not just across a world, no just across many worlds, but across whole milky ways. They thought this mechanism would make everything 'right'. Possibly the one god is a super computer. They set up some sort of hippy-esque low technology life on the planet we know as Earwa, which is actually nestled amongst their frightening cthulu-tech damnation internet.
Then eventually some sort of catasrophe occured where the humans on earwa were nearly wiped out. The remaining ones, out of denial mostly, simply didn't teach new generations about the past. Thus it was forgotten. With the Inchoroi are actually another branch of human beings (originally) - though a quite widely distributed, given how long it took them to find Earwa.
But yeah, not a twist on ye old days, but instead its sci fi, dragged down to the genre of fantasy by the pure force of fictional events and the qualities of forgetting.
I was already surprised about having space aliens in fantasy - with that, this doesn't seem so implausible to me.