Well, to be fair, that started the day he began campaigning.
Unfortunately you're wrong there. I think Golan in particular is destined to be determined as Israeli, and many of the illegal settlements will too...this has been Netanyahu's thrust for over a decade: too big to dismantle, too much of a humanitarian crisis to evacuate, especialy because the settlers are "persecuted Jews".
Israel itself has never proclaimed where it's borders are (all part of their expansion plans since 1947).