That an elf civ that died off(or rather lost its only city) early in world gen can make a come back.
Let me see if I can paint this tale for yall. The year is 8 A.U. (After Urist) and The Mortal Kingdoms(humans) and The Perfect Nature(Elves) are not the most friendly of neighbors, in fact they downright hate each other. The Mortal Kingdoms in its quest for glory and expansion invaded and conquered The Perfect Nature. The surviving elves accepted their new rulers for now, and so they just bided their time. Afterall they have time on their sides.
The Mortal Kingdom enjoyed some 30 years of prosperity and their elven lands were prospering. But the goblins of the Lies of Searching to their west were getting bold and launching ever more fierce attacks on the capital and in 48 the capital was sacked and razed. The humans launched a war of retaliation on the goblins that lasted nearly 100 years and ended when The Mortal Kingdom planted their flag at the top of Menacestorms in 141.
160 years of peace follow for the humans and they make only minor expansions in that time. But around 310 the kingdom starts to crumble. They first lose their goblin territory in the west. Then by 345 The Mortal Kingdom is on its deathbed, with only the old capital of the elves as its only city. Nearly three and a half centuries of waiting was over. The moment the elves had been waiting for had finally come. They rose up in open rebellion attacking and driving their former human rulers from the city, putting the last nail in the coffin of the Mortal Kingdom. The Perfect Nature was back.
The elves actually became a trading entity again and they finished out the rest of world gen alive. The first time I ever seen this too. Pretty cool too since the other elf nations are all dead, so now I got some elves to trade with on this map when I make a fort.
There is also a nice big evil mountain range in the south that was home to 5 different goblin city-states. They've been duking it out with each other the whole of the world gen, and so far there is 2 of them left. The main one had defeated and unified 3 of the other goblins states under its rule creating an empire that covers a sizable chunk of the map. If the gen went a bit longer, maybe they would've finished their war of unification.
I'm actually really liking this world, and will probably build a fort in it despite the fact that the dwarves were wiped out somewhere around 110ish. There are still a number of human civs around so I got some trading for things the elves won't bring me.