Cease-fires have proven unstable given the underlying dynamics within Palestinian society, the ideological propensity towards justification/purification through retributive violence in Hamas grass-roots and its exilic leadership cadres, and the conflict dynamics of the struggle between the two national communities. Nevertheless, as Olmert et al have, apparently, no military solution up their sleeves other than limited tactical interventions on the one hand and hail-Mary why-not lurches on the other (let's cut off the electrical grid and divert commerce through Egypt) why not suspend the tactical operations while the peace conference is coming up. The Israeli leadership has no intention of, say, reimposing a formal occupation in Gaza and things can be put on hold. This 70 years war isn't going anywheres and Israel's control of the ground in Gaza is, sadly, gone in the mid run. A cease-fire if properly implemented shouldn't degrade Israel's strategic position vis a vis W. Bank.
Yemen's Houthi rebels commit to peace plan in letter to UN chief, BBC reports (Haaretz)
from the article: Leading Israeli authors, intellectuals call for truce with Hamas