this is a new era in the Wheel of Time. i see too many nods/ similarities. like this is after ours, after we screwed up the planet and before that of the Dragon's.

the Spires are the ancient "Topless Towers" that Cairhanein was modeled after.
spire stone. no one could work it like the Builders. much like the Ogier. who were also called the Builders. they mysteriously disappeared, much like Ogiers that left this reality.
the statement. "Death is light as a feather. duty as heavy as a Spire." word for word the ancient saying in WoT except Spire replaces mountain.
warrior born. trolloc were human hybrids. Fades were their offspring. genetic experimentation to have someone fight on/ explore the surface. possibly before the Spires were built or as they were built. no longer needed so they were discontinued yet genetic traits still appear hundreds of years later. they could have been the model that brought about the idea of making the Trollocs.
the ether. it eats holes in the mind of the etheralists. very much how it is described the men (asha'man) that channeled while their half of the Power had been tainted.
crystal gauntlets / long guns = precursor to a shock lance.
Monks of the Way= remnants of the Aiel and Tinkers pre Child of the Dragon.