While I don't have a report of colors at this time. Having lived there for several years, I would think that you are going to be arriving at a good time (historically speaking). If you have 4WD then I would recommend Imogene Pass, Cinammon Pass and Engineer Pass (all in that area). The area around Lake City is a beautiful.

If you have time you may want to try the Fairplay and Alma (Hoosier Pass) areas. Above Alma in addition to Aspens will be a stand of Bristelcone Pines. This area is east of the Collegiate Peaks. In the Collegiate Peaks, I always find the drive over Independence Pass (from south of Leadville into Aspen) to be awe inspiring. Good luck, drive safely, and have fun.