TV Guide has broken the news that Klaus will be the next character to crossover between The Originals and The Vampire Diaries.
Tyler Lockwood was the first to crossover, as seen in this week’s episode of The Originals. He and Klaus clearly still have issues, so it’s anyone’s guess as to what brings Klaus back to Mystic Falls from New Orleans.
While it is possible that Klaus’ return could signal more developments on the Caroline/Klaus relationship front, I’m not sure that’ll be the case. Because The Vampire Diaries will be celebrating its 100th episode in 2014, I would be willing to bet that Klaus is only returning for whatever will happen in that episode.
Source: TV Overmind