I found some details in the ToB for dwarven lorekeepers, but no equivalent for elves. What is the history of elven priests in Warhammer?

jh

Elves adhere to the idea of the "priesthood of all believers," which in essence means that all elves are priests.

On the other hand, some are probably more "priestly" than others, such as the Phoenix Guards who watch over the Shrine of Asuryan and the High Mages who guard the Tower of Hoeth. Come to think of it, the High Mages are probably the closest thing elves have to "lorekeepers."