What I remember and what I understand from his situation, is that Real Madrid are allowed to negotiate with him as soon as the 15/16 season ends. That means if they offer Juventus €30m for him, this automatically triggers a clause which will allow them to negotiate with Morata for the transfer. But the decision on whether he wants to sign with them or not is ultimately down to Morata. Remember, until such time he agrees to a transfer to Madrid he is still contracted to Juventus. But if they offer him 2/3 times the salary he's getting now and they seemingly can "guarantee" him first team football, it would be hard for him to say no of course.
We can all understand certain things one way or another.That's why contracts are written not to have any doubts.Yes he is a Juve player no doubt about that but, that buy out clause in Real's favor immediately nullified that fact if they opt to activate it.Not just for opening negotiations but for buying Morata back to Madrid.And to this step Morata does not have any role in that.
Only thing that can work in our favor is the fact that you can't deal with a player who doesn't want certain situation.For example that turd Ibrahimovic was heavily under contract with us when we were relegated but on advice on that fat prick Raiola didn't show at training sessions and publicly demands a transfer just to push forward our board to allow the departure.
Only in such a case ,and if they aren't much interested about bringing him back they could give up.
Anyway I think that he will stay and we will find some solution with Real.