Black Friday didn't have much of an impact last year. The price briefly went up a little afterwards, then crashed heavily down. Perhaps this year will be different. Past performance is not a reliable indicator of future performance. Nevertheless I don't think it will affect the price heavily.
I think this event is way bigger than last year, so we should see an impact on the price 
But it should be a temporary one, after the event is done, the price should go back to the way it was before
But i hope i can make a pretty good profit in the temporary price surge
Maybe you care to elaborate it. How could this increase the value of bitcoin.
The bitcoins that people buy (price increase) will be sold by the merchants (price decrease) so it will be balanced?