Ludicrous Speed -- GO!!!
This, via Ain't It Cool News, is a piece from a Playbill interview with Mel Brooks.
All I can say is: Best. News. EVER.
MEL BROOKS: It's doubtful [that Brooks will appear in The Producers movie], but I'm writing myself back into the Spaceballs sequel that I'm now writing, so you haven't seen the last of my face. Why another Spaceballs? It wouldn't feel right have anyone else play Yoghurt and the first one was the best experience I've had making a movie since Blazing Saddles.
PLAYBILL: When can we expect that?
MB : Best case scenario : a week before the new Star Wars opens. Worst Case Scenario : a year after the new Star Wars opens.