We had thought that this was going to be difficult, Keith Richards is on tour with the Rolling Stones and there was talk of trying to get him into the Disney movie with almost the longest name ever, Pirates Of The Caribbean: Dead Man's Chest. From IMDB:

Depp says, "It doesn't look like it will happen now. Keith is on tour so it's hard to fit into the timeframe we're working to."

Yeah, that and the fact that Richards has already said that Disney just isn't his image. Still, this would have been a wonderful partnership onscreen, and one even John would have allowed through his "No singers to actors" rule. What do you think? A loss to the sequel?