The School Fire was in 2005, not 2015. You might want to recheck the dates on the news release. While there is still a visible scar from the School Fire in some areas, it's mostly just the leftover standing snags. The brush and grasses in the area are fully recovered.
There were a few area fires this year (Blue Creek, Grizzly Complex) but they should not effect you. The Blue Creek fire was nearly all private land to the South East, and the Grizzly Complex was mostly confined to the wilderness which will not be accessible in March due to snow.
You will not be alone shed hunting the Blue Mountains. The area gets hammered by horn hunters. Also keep in mind that the Cummins Creek Drainage is closed until April 1st in an effort to protect wintering wildlife.