The Afghan Test, Raza-Williams-Ervine were all amongst the runs, Zimbabwe had a 80+ first innings lead, and still went on to lose. The overall quality just isn't there. Mind you, Zimbabwe close to Ireland in white ball formats, and close to Afghanistan in red ball...but in one or other formats, they're behind half in skills and half in mentality.
But I don't think there's any 3 year deadline with regards to the ICC vs Zimbabwe. If that were to have happened it would have happened already. Thats not to say anything is permanently written into stone, but for the forseeable future, the ICC is going to retain the 12 full members setup with all the perks that go along with it.