Ok, I really feel sorry for Elena that she was turned, I know doesn't want ir, so I dodn't want it either.
But I started to think tthat world with vampire-Elena will be a better place than with human one... Finally she'll be strong enough to take care of herself, plus she'll be difficult to "destroy" and, well, she's technically dead, so I do hope we won't hear any sentence with "save Elena" this season. I'm really sick of that.
Other thing is that I hope that with dead Elena Klaus will lose interest in her, so Salvatores will sto consider him dangerous... I finally want them to get along!
All in all, I'm perfectly fine with Elena becoming vampire.
Oh, one more thing - Bonnie already did her part in "bringing Gilberts back to life" project & it didn't end up very well for everyone. It would be safer for everyone (especially Bonnie) to just let Elena stay dead.