The BBC reports that Simpson’s creator Matt Groening told The Sun newspaper that the series will continue for five more years, equaling the record 20 years run of Gunsmoke. Groening said: “I’d love to get to 365 episodes, so there’s one for every day of the year with no repeats”. He also mentioned that a Simpsons feature is in the works.
Simpsons "will go on till 2009"