Misty's replacement has a recipe turning these into Epic Raid Tokens.

Personally I'd prefer getting dungeon token fragments in raids - almost all of my raid tokens are turned into dungeon tokens anyway, and this is just one more ingredient to take care of, plus there'll be the odd annoying situation where you have 29 epic dungeon tokens, 60 epic dungeon fragments and 40 epic raid token fragments.

Still, this could be a useful change if we start to see more useful recipes using raid tokens in future.