The only chance Israel has of entering into a peace deal with the Palestinians is if they continue building settlements. Eventually, the Palestinians will come to the realization that they are are only going to get a part of what they are asking for, and as the settlements grow, the part shrinks. The lands claimed by the Palestinans were never "theirs" as there was no "they" - the land was predominantly a part of Trans-Jordan, subsequent to its creation out of the Ottoman Empire. Jordan effectively ceded the territory to Israel - they neither want the land nor the Palestinians who claim it is theirs, despite never having any sovereignty over the land,  never having any governing body controlling it, or any Shah, Mufti, President etc. as leader of those inhabitants claiming ownership. 

If Trump provides the level of support to Israel he has pledged, they may be lucky to retain Gaza. The US wields a big stick at the UN, watch how the attitudes change - follow the money.