I will sit down behind a PC and wait for the reaction of the market.
Right now i am too involved to not spend time on it. If there is a positive reaction, I will celebrate later on.
I think the marketplace reaction after the halving event will be increasing the Bitcoin's price as usual after each halving before this one, so holding some coins nowadays isn't bad idea
nothing is certain ,the price could just go down as fuck if people start cashing out for christmas and new years.
think about the people who bought when bitcoin was at pinnacle and which was more supportive then it is today and thought it will be best to hold.
I think 90% of the people expect the price to increase significantly. I also believe the price will go up quite a bit and possibly even reach a new ATH. As you say, the price might also take a huge dive and fall down. Barely any one expects that to happen, but there is a realistic point of possibility.