"The Originals" Season 4 will not be complete without guessing games before it premieres next year. One of the most asked question about the series is the possibility of a crossover between "The Vampire Diaries" cast members. On the other hand, reports eyes the reunion of Klaus with his former sweetheart, Hayley.

The truth behind the matter below.

'The Vampire Diaries' Crossover

When CW released its mid-season schedule, talks about "The Originals" Season 4 began circulating, Romper reported. It has been confirmed that the Mikaelsons will be making their crossover to the show a week after "The Vampire Diaries" bids farewell to fans.

The Mikaelsons was first introduced in "The Vampire Diaries." Since then, producer and co-creator of "TVD" spin-off Julie Plec realized their family's formidable presence so as they have been part of the spin-off. Sadly, fans have to wait for some time before they could see the Mikaelsons again.

Klaus-Hayley Reunion Spoilers

Klaus Mikaelson (played by Joseph Morgan) has made a good trip from the ladies of "The Vampire Diaries" to "The Originals". But his return to "The Originals" Season 4 will lock him up in a situation with Hayley Marshall-Kenner (played by Phoebe Tonkin).

The reunion of the previous lover will revolve around their daughter, Hope (played by Summer Fonatana in Season 4). Her existence will bring the former couple together in a very familiar set up - parents. However, whether they will rekindle their past love remains unanswered. But looking at the situation, it is quite plausible to happen.

Their relationship ended up in a good situation last Season 3, according to Yahoo News as told by the show's Executive Producer Michael Narducci. Even though two are not lovers, their relationship is in great shape.

 "The Originals" Season 4 premieres on March 17 (Friday) at 8 PM EST on The CW. Meanwhile check some related videos below: