You may want to sit down for this, Klaroline fans: Klaus is returning to Mystic Falls!

While the details are still TBD — when is he returning, and most importantly, why? — TVGuide.com confrims that Joseph Morgan will return to The Vampire Diaries in Season 5.

Right now, the only connection Klaus has to Mystic Falls is Caroline, and their last encounter still makes our hearts flutter — you know, when he told her he intended to be her last love, “however long it takes.” So it seems likely that Klaus will return to Mystic Falls for the blonde baby vampire, especially since Tyler Lockwood recently paid Klaus a visit in New Orleans. [It should be noted that CW and Warner Bros. TV had no comment as to why Klaus returns.]

However, we have another theory. We know one character gets abducted in Season 5, and if this character happens to be Caroline — she does have a penchant for getting herself kidnapped! — could Klaus be returning to Mystic Falls to find her? OK, so maybe that’s just our Klaroline-loving hearts talking, but how romantic would that be?

There’s also a possibility that Klaus could be returning for TVD’s 100th episode. We know several familiar faces will return to Mystic Falls for the big event, and since the Mikaelsons were such a huge part of TVD before departing for The Originals, it would make sense that we’d see them again for the milestone episode. Plus, Candice Accola recently told ETonline that this episode is “for the fans,” so what better surprise the fans than with a Klaroline moment?

What do you think, TVD fans? Why will Klaus return to Mystic Falls? Sound off with your theories below!

Crystal Bell is an editor at Wetpaint Entertainment and our resident fangirl for all things The Vampire Diaries. Follow her on Twitter and Google+!