There's possibility for the price to spike after the halving as we can see in the previous halving, however we can't predict the future, we all know that the're so many factors that could afect the price, those who holding ton of bitcoins have control over the price, bad news or acident like hacking could make people panic and drive the price down, we just don't know what will happen in the future.
That's right, because things like that can affect the movement of bitcoin which can change the situation suddenly, and we have to realize every year there are always different cases or problems that can affect the movements of bitcoin and we don't know what will happen in the year -next year.
but I am optimistic that after reducing it to two the price of bitcoin will increase and be much better than the current price, and hopefully in accordance with everyone's expectations and predictions.