What would happen if Israel left the PA territories?

The first thing ALL Palestinians will do is celebrating their freedom.........then , THEY will decide their OWN future FREELY........One can wish them LUCK and to live in PEACE .......But ...What would happen when israel leave Palestine........would israel be a real democracy?.... A theocracy.?....or A dictatorship ?............An Apartheid state.......or A racist state....... Would israel leave the HIGH WALLS CASTEL mentality or BREAK ALL THE WALLS and live in peace with the neighbores......