November 21, 2015
Alex Hirsch, creator of Gravity Falls, has announced that the animated series will be concluding after its current season. With just two episodes remaining, the short-notice news came via a 'Goodbye' letter posted on Hirsch's tumblr.
In the note, he expressed gratitude for all the fans and made it clear that Gravity Falls isn't being cancelled, but rather it was his choice to end the show after telling the story of one epic summer that had a proper conclusion for its characters.
The penultimate episode of Gravity Falls airs this Monday, with an hour-long series finale coming at yet-to-be-determined date.
Update: The Gravity Falls series finale airs on Monday, February 15 at 7:00pm.