But a question, why would you like to see how law is going to betray luffy? What do you think we get out of that Situation or do you hope for?
Law's character ever since Doffy has fallen, his character is not moving anywhere. This can build up one of the best storylines between him and Luffy to where both characters can have great charactarization.
1- With Luffy, he will for the FIRST TIME, get a huge betray by someone he considers a close friend. It doesn't matter if Law tries to act cool and act like they are no friends, it's the reality, Luffy for the first time will receive a betray from a friend. And that's freaking Luffy, who has luck always on his side, who turns people into allies on his way, so for an ally to turn to enemy, that's a new thing to witness, and would create an awesome drama
2- For Law, the guy as I mentioned, after Doffy has fallen, his character did not move to anything new. He just feels like "Nothing". Nothing to offer except his presence as an ally for the war. That is a great shame. That's why I said that Oda has to at least provide the thought of betrayel to cross Law's mind.
I really don't mind it if Law completely betrayed the alliance and ended the war on the bad side. For me, that would be such a great development in events which could potentially means that Oda's intention is to make not only Kidd, but also Law to go his own separate journey and ulyimately, they all fight for One Piece, like how some fans wanted when Supernova came around
BUT if Oda wants Law to be a cheerleader for the rest of his life for Luffy, I also do not mind it, BUT I prefer it after Law having a thought of betraying Luffy, but he ends up saving the day and comes in clutch because of some characterization Law got from Luffy who won his heart again! So, what I mean, is that if Oda wants Law to throw away the wole going after One Piece and bet on Luffy and be a cheerleader, I want Oda to build for that moment, and build for event where Law completely announces that One Piece is not a goal he has and he's betting on Luffy for it.
So, either way, both direction would give Law the opportunity for his character to move on from the Doflamingo Saga which imo he still did not.
Oda can either:
1- Build him as an enemy to make him a rival once again for the throne
2- Or he can give closure for Law's character by making him have doubts, then resolve it at the end with Luffy and entrusting everything on him
However, one thing I would be afraid of, and that Oda makes him another Squard. Him thinking about betrayel is NOT the same as actually making a move and betraying. So, if he is about to betray, he better do it until the very end, cause I will not stand or swallow the idea of him making a betrayel, then immediately in short span of time, he regrets it and starts crying like Squard. Ugh, shoot me please if that ever happens!