Waiting for, or expecting, Black Friday hardware sales is really a fool's game. There is rarely ever anything of recent note or high desirability, put on sale during BF. The only hardware you will see any deep sales on is hardware that is generally several years out of favor. So, two year old monitors, most of which won't be high refresh rate, low response time models with freesync or gsync included. Plus, models with variable sync features are in high demand, so manufacturers have little reason to need to drop prices on them in order to move them out of inventory.
Anything you find on sale for BF will likely be hardware they had a hard time moving in the previous year or two, and this gives them a chance to do so to make room for newer, improved inventory.
But there are occasionally a gem or two to be found, so anything is possible.