They won't shut the national forest down, never have before. In 1988, it was extremely hot and dry, southwest Oregon was on fire, Yellowstone was on fire, they made everybody camp in established campgrounds, but the main roads were open. The roads were closed if they have grass growing in the center, but that's pretty much the case in most years when the fire index gets to Level 3. 1988 was a very good year of hunting for us! But I hunt just a little north of the Silvies.
Open campfires might be a no-no, no generators or chain saws allowed, smoking in vehicles only, that kind of stuff.
North Central Oregon is like a swamp at this time, water everywhere! It's going to green up nicely in a couple months. The deer and elk are going to come out of winter in great shape from what I've seen of the herds in my observations this winter. It all depends on what happens between March and August 1st. If it's a wet spring and early summer, the elk will be fat with awesome antler growth. If it remains dry they'll head for the hay fields and the hunting will be tough.
Mild, dry winters are sometimes a blessing in disguise.