As long as Gaza is entirely surrounded by Israel or countries doing Israels bidding, it will remain a prison, unless Israel goes through serious reform and atops being a brutal opressive regime.
For that to happen all illegal settlements would need to be dismantled though.
Or we need the formation af a new state that includes all territories, gives equal rights to arabs and jews and returns as much land as possible to displaced palestinians as well as compensates them properly. Also all terrirorists, that means also all settler terrorists need to be tried and convicted for their atrocities. For that i think it would be best do these trials at the ICC and provide prison facilities in Europe for the pre trial and post trial imprisonment of terrorists.
If Palestinians are given a real perspective and some justice i think it could work out. It would require the current terrorists and corrupt criminals in both governments to be removed from power though. So Bibi and Abbas will fight it tooth and nails.
As an intermediate step we would probably need a new UN mandate and lots of pressure to make Israels apartheid government step down.