The problem is that you can completely turn around PIA, purchase brand new fuel efficient aircraft, add more routine flights, improve service quality 200%, reduce staff, fix all its problems, make it way more profitable. However, the massive debts will still be there and it will be a LONG time until you break even.
There's no point in trying to fix it. The window for that opportunity closed long ago. Just get rid of it along with other hemorrhaging SOE and save yourself billions of dollars. If you can't make money from SOE, don't lose money either.
As for the rights to routes, JFK, and other income-generating assets, transfer them to another entity that can be rented out to Emirates or others.