Hey,
I actually feel this is another Yemen (others thought it was an opportunity, not me). Call the base a UN base or whatever. Have soldiers from all the countries based there under PAKISTAN CONTROL. They are to conduct strikes against TTP, Al Qaida and ISIS. All missions to be carried out should be either approved by majority vote or just by Pakistan.
But before any of this is allowed, Pakistan should get the following:
1) All armed services get what ever equipment they desire
2) Pakistan gets off the FATF grey list
3) Pakistani Businesses get what they want
If the above can be possible and the base be referred to as UN or Anti terrorist force or whatever and it even houses Saudi or UAE or Turkey troops, I think this is an ideal opportunity to make the most of it and be neutral in world politics. I say neutral because CPEC will continue as usual, Russia can be asked to help us in the Project Azm or Aviation city by giving us ToT on some products and also take part in CPEC and we have the rest of the worlds soldiers based in our country on one single base.
And before anyone says "oh, it will be black water all over again roaming our cities", know that the base security will be provided by Pakistan and everyone leaving and entering will pass through gates manned by Pakistani soldiers, so even still if we cannot keep eye on them then shame on us.
Anyhow that's my thought, lets see what actually happens. But perfect time to have relations with the Worlds sole superpower and two upcoming powers as well as Europe and making sure our neighbor to the west is not used against us.
P.S: No Indians allowed on Base, if they did not send soldiers to Afghanistan they are not allowed now to send soldiers.