I think, Sarfraz's days as Captain are over. I have seen the body language of PAK players today and obviously the Captaincy as well, also team won convincingly - I am sure PCB isn't that dumb. Now, Malik will lead in 4 more games and chances are high that he'll win T20 series, might be even both series and Rizwan was put at 4 today after brilliant keeping (my hunch is someone is desperately expecting Rizwan to score some runs, so that ....

) - it'll be impossible for PCB to reinstate Sarfraz against AUS - PAK under Malik will crash this AUS side on UAE tracks. After that, no way Sarfraz will return as Captain, might not be even as player, while his Test Captaincy career is basically over.
Over the last 2 years PCB has protected Sarfraz wrapping in wool regarding his Captaincy & Keeping - now that'll backfire. Had there been a younger deputy, PCB would have gone back to Sarfraz, but it'll be tough now. Also, Malik has burnt his hand in past - once bitten twice shy, I am sure he has been brought into confidence before accepting the job, that this tenure will be different from his last one. He is well established now, married to an Indian celebrity and has earned enough (with more potential in media, PL/SLs, movies, coaching), he won't have accepted the hassle knowing that his professional & personal life can be ruined by a sect.