Netanyahu has not come up with any end plan for his Gaza war (because the whole thing is a ruse to keep him in office and out of jail at this point). It seems the Palestinians have so generously done so for him.

The logical end plan is probably a tenuous peace with Israel. The Palestinian Authority is smart they'll either make peace with Hamas or betray them all and turn them over to the Hague. The former will stabilise the Palestinian state at the expense of risking another Israeli invasion. The latter will stabilise relations with Israel in exchange for potentially weakening the unity of Palestine. But the PA cannot keep their heads in the sand and ignore Hamas.

Elections must be held. The Palestinian Authority has no claim to any mandate from the Palestinian people. Their latest election was over 18 years ago. If they want international legitimacy then they will need to demonstrate they have the confidence of the Palestinian people.

With a strong PA, there are two logical endpoints—a two-state solution with strong cooperation between Palestine and Israel, perhaps even to the point where there can be freedom of movement between the two or even united citizenship; or a one-state solution with the entirety of Palestine being absorbed under the state apparatus of what is now Israel, forming a bi-religious or secular successor state (due to the new voting power of Palestinian citizens).

Nobody will be entirely happy and get everything they wanted in the end, nor will everyone think that the result was totally fair, but I think at some people, people get tired of endless war and become willing to compromise. This may not happen in our generation, but it eventually must.