came in here to say Traffic too, i'm glad they're working on one as we speak, their older full-lengths ('Moving In Traffic', 'Via'...) are timeless, in my opinion. some of the most sincere street skating paired up with the classic Traffic editing style : genuinely raw without trying too hard, creative without needing to highlight it with all kinds of flashy, corny gimmicks.
new Minuit full-length in the traditional Yoan Taillandier style would be amazing. he's still actively filming - i know he has been collecting literally hard drives worth of footage of so many people over the years - but he seems to have a hard time putting any of it to use. he's been dropping a few web clips of mostly throwaway or tour footage to try and get his clothing company off the ground, and contributing to some independent full-lengths here and there too, but i would love to see him put out a new full film of his own again.
having just skimmed through this thread i would like to add Northern Co. and State to my list too... maybe The Killing Floor too although i haven't been paying that much attention to their video offerings, i like the art direction, the boards, they have a solid team and i think they could come up with something interesting