Dollar will go to 200, then 300, then 400, then 500. Its not a matter of if, but when. Its going to happen sooner or latter. We can't even feed the population now, importing wheat from Russia. Low oil prices and weak consumer buying reduced import bill, also a lot of Pakistanis got laid off in UAE and Saudia who came back home and brought their savings with them, hence a jump in remittances. Additionally, dollar has lost significant value against all other currencies - see dollar index chart.
This is all temporary.
Fluctuations happen in curriencies, but long term upward trend of USDPKR is intact. Fundamentals haven't changed, we're a failed state.
Don't forget Reko Diq case, currently there is stay on penality by world bank, but if Pakistan have to pay $6 billion penality which is the same amount we got loan from IMF, dollar will fly instantly.