Some where over the rainbow Klaus and Elena Klena

In the last episode of the vampire diaries, Stefan sacrificed himself to kill Katherine, Elena comes back as a human and she marries Damon. Caroline is the last vampire in town. What if Klaus comes back in the hopes of winning back Caroline but he starts to feel some attraction to a certain brunette? Will Elena be able to forgive everything Klaus had done or will she stay with Damon? Will Caroline be with Klaus before his feelings for her transfer to somebody else? What will Klaus do to ensure the love of his life won't die? Read to find out