Be kewl if what occurred on the last server became part of the legends in this new one, entangled with some mythic elements and stuff that didn't really happen but could be added by the people into the folklore... The nations that stayed would probably have become either decadent or somewhat removed from how they once were, though, if this is gonna be 1000 years later.
Its not his player lore really but basically Uziu had taken over the world and the witches had taken a bunch of people captive and was doing stuff on them. Its explained better in his lore though :/
I like this idea a lot, you could talk about it as ancient times, even extend off and talk about the death of the reaper etc. Could be interesting to have some history in the lore.
You shouldn't add any of the groups from the old server into the lore, also, the whole "witch" lore... idk if that is from you or the players on the server but I think it is a little bit to un realistic to enjoy playing it in the role play.
There won't be witches this time, so don't worry. Also, I'm going to tie witches to a deity (God of magic), so they will only be a part of the lore/a rumor.