Oh man, this is not easy. I don't know what to include and what to omit. Oh, well.
On the following maps I drew the approximate borders of states but mostly they were never specified (only for "modern" states) so there will be lots of mistakes.

Orcs and Goblins now exist for sure, they are elvenoids too (just like Janns, Amunds, Gnomes, Humans etc.), except they bear Orwella's curse: their soul gets destroyed upon their death. They mostly hate their Mother only one tribe of them are faithful to her. They are cool dudes tho, they worship their own heroes who reached demi-godhood (oldest is called Hram) when they cheated the curse in some horrific ways. They are carnivores, the family, clan and tribe are very important to them and live a short life. Oh, Goblins have their own god called Menegle and they are mostly slaves for the Orcs.
The rise of the Human race. They build two magiocracy: Cranta in the North and the Demonic Old-Empire in the South.
I always picture Cranta as a state of Neanderthals on steroids. Elves helped to build this one, they fought much with the Orcs and even maybe the Snils (lizard people). Cranta originally was shamanist, then their shamans discovered they can invite strong spirits (like the spirit of winds, hills, water and such) into their own bodies and let them act through them. This way the spirits gain followers and they got more stronger. This practice called is seraphism and persecuted in "present day" Ynev in many places. These shamans were later worshiped by the Crantanians as gods. This country had several crisis which made lots of people migrate to the South. Their Golden Age was about 22-18 thousand years before Pyarron.
While they were prospered the Orcs created a short lived but powerful state, the Skull Alliance. They hunted down most elves on the North so their leader could eat their souls and gain immortality (of sort). But an Auld-Elf killed him and the state fell apart. During the wars most of the Orcs died too.
The Demonic Old-Empire also used seraphism, except they made their business with demons.