Andy's Hurt, Ian's hanging out on the East Coast doing his thing for most of the season, and LJ broke his kneecap. So that pretty much leaves Will, Cole, Max, and whoever else they can get to bum around with. Since Cole and Max live in Canada, that doesn't happen too much.
They're on a Mid-West tour right now (at least I think they still are), so I'd expect a new episode shortly after that's done. But without Andy, Will's doing a lot of his own stuff, and let's face it, half the show is Will and Andy making fun of each other, so without one of them it's hard to do it. Hopefully once Andy's knee gets better it'll get back to being a regular show.