10 months after the halving in 2012, the price rose about $50 times. So this time, could rise about 10 times.
i believe that the effects of halving will start to show soon and price will rise just like 2012.
but the rise will never be the same as 2012 because by that time bitcoin wasn't as popular as today and then it suddenly started to become more and more popular and the number of people got into bitcoin because of mining,... caused the big huge rise of 10x-50x and so on and the willy bot then pushed it to 100x
but none of them are present to day.