I doubt Giobbi will be held accountable. I think there's a much higher probability that Ficcarra, Napoleone, and Zugarini will be held accountable for the interrogation.
In short, the lower level people will take the fall if a scape goat must be found. That's what I think the convictions of Napoleone, zugarini and ficarra were all about in Napoleone's custody battle.
Mignini? Maybe. Because its such a high profile disaster that has cause international embarrassment to Italy as a whole. But first he'll be eased into retirement, so he's no linger active. Then the net will tighten over time with successive ECHR opinions, and further review.
But the is no justice here. Lives have already been pushed off track, wrongful imprisonment suffered, reputations sullied deliberately and falsely in the press. MIgnini can't make right what he's done, only be punished for his crimes after the fact.
As for future acts of framing. I guess its like environmental contamination of DNA in Amanda's bathroom. The prosecution wants to say its evidence of her presence at the murder, which is obviously just silly.
But it may be just as silly to think the framing that occurred in this case is substantially different from what happens more regularly in Italy. ''Framing' may just be how they play the game, it certainly seems evident in many other cases.
Mach would probably know best. Doesn't mean he'll tell us, not after a gallon of chianti.