Let me tell you what is going to happen. Just like in FATA area we saw Chechens, Arabs and Central Asians marry locals and impose their rules the same prospect is likely with Afghan refugees settling in various regions of Pakistan. Afghans ars already present in almost every region of Pakistan. From Karachi to Lahore and even Azad Jammu Kashmir.
What did we learn when Afghan refugees settled in Pakistan during the US Cold War against Russia?
1. Afghans love to carry their flags and display them everywhere. In other words create ruckus.
2. Afghans love to break rules and resort to violence in order to achieve their goals of intimidation. Stone throwing at border areas and quarreling with authorities is nothing unusual.
3. Afghans love to multiply and disobey law of land.
4. Afghans love to spread opium.
5. Afghans love to spread AK-47 culture.
6. Afghans and particularly Pashtun nationalists and Northern Alliance thugs that hate Pakistan love to morph in Pak society and carry out terror attacks.
7. Afghans love to destroy Pakistani fabric and culture. Support for PTM is rife.
8. Afghans love to hate Pakistan within Pakistan. Afghans don't accept Pakistani territory and Durand Line whilst living in Pakistan.
9. Afghans love to stir the pot by aiding enemy India. Carrying out terror attacks against high value targets and killing Pakistani children in schools is not a secret to anyone.
Now you tell me what the prospects are for the new Afghan refugee wave settling in Pakistan? Not a single nation around the world has settled this many Afghan refugees as Pakistan has. Pakistan has paid the ultimate price and it will continue to pay the price.
This is all meant to appease the Americans. Americans have time and time again pressed Pakistan to allow Afghan refugees to settle in Pakistan. Especially after US/NATO exit the Americans have requested Pakistan to clean up their mess. Our leaders are cowards. Appeasment of Afghan refugees and Americans comes first. Pakistan comes second. We always have excuses. Even at the expense and well-being of Pakistan.
In the end, Pakistan will have to clean up the Afghan mess just like it had to clean up FATA. The Americans, Europeans and others won't be there just like they turned a blind eye during the last 20 years.