Geoffrey Aronson makes a good point in this NOREF report:
There is no architecture in place for trilateral (U.S.–Egypt–Israel) or bilateral (U.S.–Egypt, U.S.–Israel, Israel–Egypt) consultations to modify the institutions created to consolidate the Egyptian–Israeli peace treaty or even to exchange views. Changes made under pressure of events have served to undermine rather than fortify strategic stability. More broadly, mechanisms created to consolidate the old order need to be reimagined in order to understand and address the dramatically different contemporary political and security environment.
Those who keep calling for a renegotiation of the treaty — notably the MB — need to decide how exactly it will be renegotiated, especially as they don't like talking to Israelis.