one general rule when it comes to fading. don't expect anything until six months and after a soak/wash(your preference). after that things will fade alot faster. even from everyday wear. iv'e seen jeans drasticlly change from their first soak in 6 months or even from the rain.
1-2 months nothing more than general stretching from wear and creases setting and some supple minor fades at certain areas like the pockets, stacks, back of the ankle area, and maybe just maybe some whiskers. combs are the hardest to achieve.
3-6 months just minor light fading nothing too hardcore yet. just wear them and wait for the results.