There's Newton's Playground in November, which will be the World Championships. Not much to say here except that it'll be the biggest skate event of 2009 in the entire world.
There's work underway towards putting together an Australian National Downhill in the lead-up to Newton's.
And there'll be the Conehead Cup 2009. Dates and locations for this will be set after the 2008 series wraps up in November. If you wanna host one of the races in your town/city you should start slaloming and get along to a race to see how it all works.