“Toy Story 4” is officially happening. Walt Disney CEO Robert Iger made the exciting announcement Thursday during a quarterly earnings call that the beloved Pixar franchise would be returning for a fourth installment in 2017.

Currently the only confirmed news about the 2017 movie is that John Lasseter, the man behind the original 1995 “Toy Story” film, will direct the fourth installment. Entertainment Weekly reports that the story was “conceived” by Lasseter, Andrew Stanton (“Finding Nemo”), Pete Docter (“Up,” “Monsters Inc.”) and Lee Unkrich (“Toy Story 3”), but it will be written by Rashida Jones and Will McCormack.

No details about the plot have been released – but that hasn’t stopped fans from speculating about what “Toy Story 4” could be about. One of the theories circulating? The new movie will focus on Andy’s mother.

The plot rumor stems from a “Pixar Theory” that was published in February 2014. Fans of the “Toy Story” movies collected evidence that seemed to hint at a crazy idea – Andy’s mom is Emily, Jessie’s old owner.

The theory is based on a few small clips from the movies – Andy’s hat and the room that belonged to Emily. In the original “Toy Story” film, Andy wears a cowboy hat whenever he plays with Woody. But the hat that Woody wears looks “noticeably different” from the hat that Andy owns. While the difference in hats could be nothing, the “Pixar Theory” then turns to Jessie’s hat … which appears to be strikingly similar to the hat that Andy owns. The idea is that the hat belonged to Andy’s mother when she was a girl – and that she had the hat because she used to play with the Jessie doll.

The second piece of evidence that the “Pixar Theory” looks at is Emily’s room. In “Toy Story 2,” viewers got to see Jessie’s life prior to her getting put away in storage and joining Andy’s toys. In the scene, a hat that looks similar to Andy’s is on the bed. But a record player and flower power posters suggest that the room isn’t modern. The speculated timing would place Jessie’s Emily around the same age as Andy’s mother when she was a young girl.

The “Pixar Theory” about “Toy Story” is an interesting one, but the tale doesn’t match up with the “Toy Story 3” ending. In the 2010 movie, Andy brought his toys to Bonnie, a sweet young girl who played nicely. He was happy to see Woody and the rest of his toys go to a good home, and whispered “thank you” to them for the wonderful memories.

But “Toy Story 4” doesn’t necessarily have to pick up where “Toy Story 3” left off – especially since the actors who voiced the toys (Tom Hanks, Tim Allen, Joan Cusack, Wallace Shawn and more) have not been confirmed to return.

As Lasseter explained to EW, the last movie “ended Woody and Buzz’s story with Andy so perfectly that for a long time, we never even thought about doing another ‘Toy Story’ movie.” What changed his mind is a “new idea” that he hatched with Stanton, Docter and Unkrich.

“I could not stop thinking about it,” he said of their idea. “It was so exciting to me, I knew we had to make this movie – and I wanted to direct it myself.”

Disney/ Pixar's “Toy Story 4” is to be released in theaters on June 16, 2017. What would you like the plot to be about? Check out what other Twitter users are posting about and tweet your thoughts to @AmandaTVScoop.