Is there really an "indigenous" people to the palestine area like there are in others? The area has been conquered, reconquered, genocided and force converted a great many times in the past 3k years.
Babylonians, Greeks, Romans, Byzantines, Egyptians, Arab Mamlukes, Byzantine Crusaders, (Mongols), Arab Caliphates, Ottomans, Brits and lastly Arabs and Israelites.
They likely still want what they always have, freedom from the violence of their oppressors and a return to their indigenous lands. Until Israel, by choice or force, stops it's decades long settler colonial violence against Palestinians - or succeeds in their annihilation attempts - this will continue.
Why, because Israel didn't stop where they agreed? Maybe stop projecting the real actions of the oppressor onto the ones being oppressed.
We have no idea what Hamas would or wouldn't do in the future, only what has already happened and what they publicly declare. In any situation, what Hamas wants is largely irrelevant if nothing is done to stop Israel from continuing their decades long ethnic cleansing of the Palestinian people.