In order to change their priority from expansion to peace Israel will have to feel a serious existential threat. The rocket fired from gaza is light years away from an existential threat. In time, perhaps the Palestinians will have a threat serious enough that Israel will put aside peace fakery and consider actual peace.
Islamic State destroys part of Syria's Temple of Bel, monitoring group says (Reuters)
from the article: Israel slams Abbas in letter to UN following Gaza rocket fire