The upcoming fourth season of "Star Wars Rebels" will be the last for the Disney XD animated series.

Executive producer Dave Filoni made the announcement this morning at Star Wars Celebration in Orlando, Florida, before unveiling the first trailer for Season Four.

RELATED: "Star Wars Rebels" Could Confirm Fan Theory About Rex

"It's my decision, as the creator of this show with Simon [Kinberg], that Season Four is the final season of 'Star Wars Rebels," he told the packed audience. "I know, I know. But I firmly believe that each generation needs to have their own piece of 'Star Wars,' and I feel that this show for a lot of kids growing up with it, is very much as much a part of 'Star Wars' as any of the movies, and I really appreciate that love for you guys. And I feel creatively that I can make this story about these characters the most meaningful it can be by arcing it to where I can get to the end with this season."

"So, I now that's tough. That's tough for me, but believe me, I can say I know what it's like when I don't get to end a series," he continued, drawing laughter from the audience with his reference to "Star Wars: The Clone Wars," "and what happens when you don't end a series is that you end up making T-shirts, and you have to prolong it, and it wasn't as fun. Believe me, this show represents by no means the end of anything we're doing in animation, of course."

RELATED: 15 Stories "Star Wars Rebels" Needs to Tell in Season 4

Debuting in 2014, "Star Wars Rebels" is set just before the events of 1977's "Star Wars," and focuses the rag-tag crew of the Ghost and the fledgling Rebellion as they rise up against the tightening grip of the Galactic Empire. The series has not only tied up some of the loose threads of its animated predecessor "The Clone Wars," reintroducing some fan-favorite characters, it also has served as a link to the original "Star Wars" trilogy and "Rogue One: A Star Wars Story."