The max it can go low is 50k usd. It won’t fall below it. The reason for which I am so confident is that, as Bitcoins will go down, more people will start buying it. Moreover we know that Bitcoins are fixed in numbers, hence if more people will buy it then the price to accumulate it will increase, leading to increase the demand. Hence as the demand is high and supply is less, automatically the price will go up. Hence, 50k will be the lowest price possible this halving. Now let’s see what happens.
But why 50k$ or not 40k$ or 60k$? There will be no specific numbers when it comes to bitcoin because bitcoins fluctuations do not completely depend on supply and demand. Bitcoin prices are still largely manipulated, and the price of bitcoin is determined by market makers . I don't believe in supply and demand at this stage as bitcoin is still too small and too easily manipulated . But personally I don't think they will let bitcoin fall before the halving, the price will continue to increase and will reach ATH before the halving occurs.