Four years after the release of the last film, "Harry Potter and The Deathly Hallows: Part 2," Potterheads still have a lot to be excited about.

As the cast of the upcoming movie "Fantastic Beasts and Where to Find Them" slowly unravels, author J.K. Rowling dropped another bomb in a tweet announcing a new Harry Potter play.

I'm also very excited to confirm today that a new play called Harry Potter and the #CursedChild will be opening in London next year.

— J.K. Rowling (@jk_rowling) June 26, 2015

According to Vulture, "Harry Potter and the Cursed Child" is scheduled for its debut on the London stage in 2016, but nothing big about the plot has been revealed. There are small hints about what to expect in the upcoming play, and almost all of them can be found in one place: Rowling's Twitter timeline.

The first thing "Harry Potter" fans need to know about the new play is that it brings along a new story. There are already seven books and eight films, but this new story still hasn't been told before.

It will tell a new story, which is the result of a collaboration between writer Jack Thorne, director John Tiffany and myself. #CursedChild

— J.K. Rowling (@jk_rowling) June 26, 2015

In another tweet, Rowling shared her excitement to share an "untold' part of Harry Potter.

It has been a huge pleasure to share with them (and soon, with you!) this untold part of Harry's story. #CursedChild — J.K. Rowling (@jk_rowling) June 26, 2015

With a mysterious plot, fans do not know what to expect. On the other hand, fans do know what not to expect. It can be found, once again, in one of Rowling's tweets. She tweeted, "NOT a prequel!" However, she did not say anything about it being a sequel. It can also be a story that happened during a gap between two books.

When it comes to which is the better storyteller between the books and the films, people have mixed opinions. Fans of either the books or the films are now wondering why the new story is not being published on print or released on the big screen.

On her Twitter, Rowling said, "To answer one inevitable (and reasonable!) question - why isn't Cursed Child a new novel? - I am confident that when the audiences see the play they will agree that it was the only proper medium for the story."

With this, Rowling hints that this new story has a unique touch to it that fans haven't seen in the books or films before.

"I've had countless offers to extend Harry's story over the years, but Jack, John and Sonia Friedman are a dream team!", Rowling expressed her excitement about the production team in another Twitter post.

The production team includes Jack Thorne, an award-winning English screenwriter and playwright, John Tiffany, a Tony Award-winning theater director and Sonia Friedman, a British West End and Broadway theater producer.