Union of Afghanistan and Pakistan is the future for both countries.
It will have many positives for both, like finally forcing Pakistan to adopt Shariah/Fiqh rulings, change our monetary system away from riba, strict punishments and no leniency for criminals, maybe also finally give us guts to take on our enemies (transient and permanent) more strongly like India, Iran, Gulf Arabs, foreign forces.
All hallmarks of our feet dragging British educated politicians. Seems we only adopted the worst parts of the Western legal system like a complicated bureaucracy, unequal laws for rich/poor, and delayed justice.
For Afghanistan, it will finally give it normalcy, a unified state, strong military, geopolitical muscle, and global relevance.
Pakistan should work towards reintroducing Dari into mainstream Pakistan. Ideally, it would have to have the same position as English and Urdu in any joint system.