It's a little early to start putting conditions on any future Egyptian leadership. At least wait until you know who your dealing with. This request of western nations is completely unwarranted and is only starting relations with any emerging Egyptian leadership on a bad footing. Israel should just monitor and not talk at the moment, when the new leadership emerges, Israel should talk directly to them and not always rely on western governments to threaten countries into peace with Israel. Which is one of the reasons why pro western governments in the mid east are under severe pressure now.
Iranian parliamentary panel gives conditional nod to nuke deal (Reuters)
from the article: Israel urges West: Make sure new Egypt regime honors peace deal