Let us consider the same scenario in the 2016 event. Prior to the 2016 halving event, we had a influx of $75000-$90000 into the market (the prices considered here are $500-$600 per bitcoin at the generation rate of 6 blocks per hour and 25 bitcoins per block). After the July 9,2016 halving the same pattern followed but after the price hike we had a influx of $90000-$375000 (which was driven purely due to the hype and the shitcoin strategies).
Consider the scenario in this halving, we have a current influx of $750000 per hour into the market (at the rate of $10000 per bitcoin and 12.5 bitcoin per block). Even if we rise up to $20000 per bitcoin, the price would remain constant at $750000. The altcoins have completely died and I don't see any really promising alts which will be driving the prices up to sky high. We are very well aware we would be having a lower volatility as the year goes and would reach the stable prices at somewhere around 40-70 years from now when most of the bitcoins have been mined.
P.S Since the board is Speculation, these are completely my own speculative ideas and thoughts but well demand and popularity of bitcoin over the years after halving would provide an answer to these questions.