Bitcoin will not be able to reach the 4000$ value or more than that. Bitcoin has exponentially increased in value this year and even pumped up to 3000$ before it went down. Today its price is again moving up but we can see that the new trend traps the value of bitcoin between 2200$ to 2500$. With it we can be certain that another spike in bitcoins value will no longer appear since it has already been done already this year. What we could least expect for bitcoin is for it to hit 3000 $ value by December this year. If we are going to spike 4000$ or more it will be next year so let us just hold on to our bitcoin and sell it next year.
The bitcoin hash rate has also been affected due to the large scale demand of bitcoin mining in Russia. However, this above information can be proven as mortal in regards to the value of a bitcoin to be $4000.
If Segwitx2 is implemented then we are surely heading towards the 4000$ bitcoin price within the month of August, but if on the other hand this does not happen, then I think we are moving towards split bitcoin chain which can make things unclear and doubtful.