This Zarvan and the star wars potrait guy are obviously Salafi/Wahabbi. They are oblivious to the fact that they are a minority in Pakistan, and outside Lahore, Karachi and other major cities, most people are not Wahaabi. In case of some Talib taking over the reigns of the country, I know for a fact that Sindh and Karachi would secede in a minute. Sindhis are staunchly sufis, and MQM is secular. I'm sure they won't hesitate a bit to declare independence. They also have enough manpower in the form of Pir Pagara's hurs, PPP's and MQM's militant wing to fight back any Taliban attack. Balochistan would also declare freedom as the army would mostly break down, and their call for independence would be backed by the world community. An independent Sindh is also potentially the richest state if Balkanisation is to occur.
As for Punjab, the TTP/Afghan Talib would declare a Pashtun as a khalifah. Under the garb of hyper religiousity and Islam, the Taliban is actually a Pashtun supremacist movement as a whole. The pashtun Talib would want to subdue Punjabis, as they are brainwashed from birth that they have been the historical rulers of Punjab. This would be unacceptable to most Punjabis and the barelvis might rise up resulting anarchy and mass bloodshed. This would also bring about a nationalist sentiment in most Punjabis, and most of them/us would seek a re-merger with the Sikh east Punjab. The Americans/UN/Nato would quickly occupy Pakistan nuke sites, which are based in Punjab.
My point is. Enforcing Khilafah by force or a coup is equivalent to breaking Pakistan. I, for one, would never accept a Pashtun khalifah. Sorry for being so blunt. The only ethnic group acceptable to most Pakistanis as a khalifah would be pure blooded Sayyid, and a non-Punjabi and pashto speaking one at that. But in the wahaabi ideology, followed by most caliphate supporting people here, a sayyid is treated worse than a dog. They are the ideological neo-yazidists. They hate sayyids because of the threat they pose to their thirst for power. Yazid tried to destroy the whole Sayyid bloodline for that reason, but he didn't realize that prophet's bloodline is protected by God. And before you think I'm a shiite, then hear this; I'm a Sunni, but I know who the most astrayed sect is.
The only way to enforce a caliphate in this country is via a democratic mass movement, and having a sayyid as a caliph. Not every Tom, Dick and Harry can declare himself a Khalifah of a multi-ethnic state like Pakistan.