You may be thinking of the Elven Path of the Wheel, where the elf goes through different phases like warrior, steward, etc.. There was some fluff somewhere that implied that some elves may go down different paths in different lives.
Black Madonna or Nosferatu by Carl Sargent & Marc Gascoigne there is mention of past elven lives, but I can not remember which and do not have the books at hand.
Edit: Just looked and it was Nosferatu, toward the end Serrin and Kristen are revealed to have been linked in past lives of another age, but while he is still an elf, she is human now.
Warning: There are many who argue how canon Sargent and Gascoigne's writings are, so just be prepared if someone wants to argue it.

So there is some precedence but even if there wasn't, if you feel it can add to the game go for it.