The Vancian magic system hasn’t changed that much even from 1e. That said, settings do change the meta narrative behind magic regularly. Faerun loves to make Mystra and the Weave big elements of their metaplot.
I could see elves forced to relearn magic every time Mystra dies or gets kidnapped or goes on vacation or whatever.
But D&D also massively changes the magic system periodically, and they actually add it to the lore as cataclysms and whatnot.
The Vancian magic system hasn’t changed that much even from 1e. That said, settings do change the meta narrative behind magic regularly. Faerun loves to make Mystra and the Weave big elements of their metaplot.
I could see elves forced to relearn magic every time Mystra dies or gets kidnapped or goes on vacation or whatever.