The regular Golf are trickling in, the TDI shouldn't be far behind.
In other news, early industry reports say that the 2011 sportwagen and later will be Golf wagons. In other words, the Jetta sportwagen might still be called Jetta sportwagen in the US but it will really be a Golf wagon for at least a few more years. Part of the evidence is the name change in Canada, where it's now called the Golf wagon, and the facelift which will stay with the car for a few years. It's unlikely that the wagon will get the new bumper for only 1 year and that VW will make 2 bumpers that look the same but go on two different bodies (wagon and sedan).
The Jetta should go to an all new body for model year 2011 which will look different from the Sportwagen. The wagon and sedan will no longer look the same.
It might be called just "Sportwagen" but it's more likely that it'll stay on the Jetta's more popular name. It'll look different so that's the only reason why they might go with Sportwagen. Even if they do totally change the wagon to use the new Jetta body, it'll be at least 1 more year for it to come out, 2012 at the earliest. That gives a minimum of 2 more model years (maybe 3 calendar years) that the wagon will continue to look like it does now.
And the 2009 didn't look like it did for that one year, it was sold for years like that, it's just that it wasn't available in the US/Canada.