Possible...
Assuming he's alive at all,
I would guess that he was in Pakistan for the past year or so, but as you say, it may be getting too hot for him there recently. Next best guess right now would be somewhere in the outskirts of Iran. If he's in Saudi Arabia, he's laying very low there, among sympathizers, as you say. The Saudi leadership is running scared, and would probably turn him over if they knew he was there.