They will. That's their history. Though the deal they extracted from PPP is indeed very good and can only be offered and implemented by Sindh govt after 18th ammendment that is more power to local/Baldiya administrators where as, PTI can only offered them federal ministries. Federal Govt cannot directly intervene into provincial internal matters.
Having said this, now i wonder, what will MQM do politics for ? they are getting every thing. Karachi administrator will be theirs as well which will now have the same power like Mustafa Kamal used to had before 18th ammendment i.e. direct control of funds. MQM entire ideology and politics is based on racism against Sindhis in their julsas. Now what will they say in those julsas ?