Everyone is expecting what will happen. Same story happened when 1999 switched to 2000.
Guess what? Nothing happened then and nothing will happen now ... and disappointed bulls will start selling their coins.
I think it's not the same case as the story of 1999/2000, and we can't fairly compare the Bitcoin's next halving with this story.
Most of Bitcoin's users expect that the price will rise highly after the next halving.