Well, it is too easy to assume that when the new coin creation drops by half that the price will double. You forgot that there is already a created amount of 15 million. The halving is already priced in in this amount. You could only expect an increasing price for the newly created coins. For that reason, I think we will see a constant but slow price increase.
Eventually, the general adoption of the bitcoin will increase its price. Halving effect will be less in the future.
Mass adoption can make the bitcoin useful so it is more valuable. I use bitcoin to buy things, so I increase its value.
most of us are already expecting bitcoin price will go up but how much is not clear to me right now but i think if it is anything like the last bubble this time it would be twice as big
The price right now will be double and twice as big as it is right now when the halving is over like in the past halving where the price suddenly rose up.