I also said that "if IK wants to fight the system". Like he joined NS in 2008 march against Musharraf. PMLN is also furious about the establishment and if IK and NS join in together, at this point, they will break the bargaining power of estb. This is the only trump card he has up his sleeves now. But lets see, because he has been so venomous against Sharifs that this seems like out of question. Yet, it is the only way they can ensure that they get the 2/3rd majority in the next election as well, whenever they are scheduled.
The way things stand right now, next elections or an in-house change seems just round the corner.