If Elena becomes a vampire the salvatore boys might not be interested in her any еще because once Ты become a vampire all your emosions are heitend they will probably wait a couple of years until a new doppelganger from elena and fall in Любовь with

There's not going to be a new doppelganger. Elena didn't have a baby before turning into a Vampire. I didn't get your Вопрос though.

As NiazAbedini & clairmxxx already siad, there' won't be another doppelganger, Elena ended her line (if we won't suddenly learn that she has a missing sister или close cousin.). Ты should explain what Ты mean with your question, becasue this Вопрос really isn't clear... Why wouldn't Salvatore brothers be interested in Elena when she'll be even еще in Любовь with both of them...?