According to a rumour reported on Eurobricks the City line in 2012 will include new police and fire fighter sets with a twist: forest rangers and firefighters.
Two new elements are being reported by the usually well-informed EB community. First, a new brown bear reported to be similar to the old polar bear design but with moving legs. Second, and more importantly to the BrickScouts community, a tan stetson giving an official LEGO alternative to the very nice BrickForge Ranger Hat.
Here's hoping that the EB community is right again.