1. After 7000 Years

Eleanor Marianna Petrova, known as Elena Petrova is the powerful witch of all time, she has taken the thrown to become Queen of New Orleans after protecting the town for 7000 years, Elena would do anything to protect the town from any harm, being the strongest Witch and person in the whole world Stefan, Damon, Lucy, Bonnie, Jeremy, Tyler and Caroline go to find her for help.
Elena hids a secret, she's Katherine's twin sister.
After a while of knowing them Elena does not like the way Lucy is doing to Damon so she stops helping them to protect her from Klaus just so she knows what she's doing to him.