Indeed, havent heard from him for years, however after a quick youtube search it does appear as though he has something coming out reasonably soon.
https://www.youtube.com/watch?v=2RYV04G0tHc
I've always admired his intentions, but boy, this one looks pretty directionless. Almost like a parody of himself at this point.
Honestly, his message is no different than many other socialists and progressives, but he has a bigger megaphone (sometimes literally) to deliver that message. He really had to re-evaluate his methods, though, after Fahrenheit 9/11 failed to achieve its goal removing GWB from office.
I've always felt that his guerrilla spirit was purest in things like Roger & Me or The Awful Truth (his TV show). Bowling for Columbine also really failed to galvanize anyone outside of the left, and stuff like Sicko was almost so muted that it didn't reach enough people not that Big Pharma would let the message resonate, anyway.
History will vindicate a lot of what he's saying (unfettered capitalism and greed, universal health care, gun control, endless wars, no social compact), but we are all so close to it now that it's easy for folks to get hung up on a bit of his method.
Frankly, socialism has been so battered that you need someone like him to broadcast twice as loud to cut through all of the right-wing horseshit and centrist rhetoric. Left concepts are radical for the U.S., so of course many are going to view him as a bleeding-heart, opportunist, fraud, etc. A little bit of character sabotage goes along way to devaluing the core tenets of his message.
The guy ain't perfect, but his mission is one that is important.