Although this will probably not happen, the possibilities of a new status-quo of Qadri/MQM/PTI are interesting, to say the least. In my opinion, it would benifit Pakistan and is a much better alternative to the current scheme of things; though Qadri is a mullah politician, from what I've seen, he's not an extremist, but making the mistake that the liberal PTI and Qadri could contain MQM would be a grave one, as was made in 1933 Germany (the same goes for outward religious interference in Pakistan's affairs, which I don't see as much of a problem, as long as the Jinnah module is followed).
Decapitating MQM from Altaf would be a major bonus to Pakistan and a new political scheme of things.
Just a few optimistic thoughts, whatever the outcome, one can only expect that the old guard will not as be strong as before but neither will they be ousted.
And by the Jinnah module I mean the using of Islamic Jurisdiction in matters of State, and the Islamic Sharia/Sunnah in the personal matters of the citizens; i.e., the State guarantees freedoms and liberties to all people, in a progressive environment, that allows minorities to freely practise their beliefs.