Mat Hayward can give you a definitive answer, but I believe that there is no option for contributor-set prices any more. All Adobe Stock pricing is uniform - there are the large customer custom deals, but they're set at the customer level, not by a contributor. Fotolia rank has no parallel at Adobe Stock either, only affecting sales on Fotolia for the remainder of the time it's operating.
If you wanted Fotolia-only prices to change between now and November 5th, Mat's probably also the person to ask as a contributor support person would have to do that for you.