Yesterday, at the Mipcom thing we mentioned a little while back, Groening himself said that there would be no sequel to the movie so long as the show was on the air.  AceShowbiz:

There won’t be a sequel to "The Simpsons Movie" until the TV series finally wraps. In an interview at the Mipcom sales mart for a creative keynote event, creator Matt Groening told director Morgan Spurlock that the second movie is far from happening because making the series and producing the movie was so exhausting.

That’s followed up by yet another ‘I dunno’ from Al Jean on the subject of when the series will end.  So in conclusion, there is no news here except that Jean was asked the same question he’s always asked, “When is your show ending?”. 

Setting aside the fact that I very much want to see the show end, I feel for Jean in these circumstances.  Every time I see an interview with him it follows the exact same formula:

1. He states that the show is still funny even after all these years.
2. He talks about upcoming episodes and/or celebrity voices.
3. He says he doesn’t know when the show will end.

It’s like clockwork.  But despite the fact that they’re signed through Season 22, and even though they signed that extension earlier this year, it’s all they ever seem to get asked about.