What exactly did the PCB expect from the BCCI now that it has started official proceedings against BCCI legally and at the ICC level?
This is a move that's going to backfire for PCB, even if they somehow manage to "win" the ICC dispute.
Let's assume an absolute best case scenario for the PCB - they get the ICC to side with them and get some sort of compensation, and a commitment to future tours. In that case, the absolute most that the BCCI will agree to, is a 2 test and 3 LOI series once in a blue moon.
By contrast, if the PCB had been patient and smart, they would have taken the longer view, and realized that eventually the political situation is bound to improve, and at that point, better relations with the BCCI would have meant a bounty of games. You could easily see a couple of long LOI series, say 5 ODIs, 3 T20s, in quick succession. And an eventual move towards regularly scheduled long series between the traditional rivals.
But by pushing for resolution now, PCB has made a move that will inevitably annoy the BCCI. And while until recently, the roadblock for a bilateral series was the absence of government permissions. Now the PCB has ensured that the BCCi will be non-co-operative to the max.
Is that a good outcome for Pakistan cricket? I don't think so.
But then again, Pakistani representatives have repeatedly shown in the last 70 years of history, that they are the absolute masters of cutting their own nose off to spite their face.