When everyone expects an intervention to make free money then its probably not happening until retail traders got squeezed out before. It can easily go much higher to 152-155 but noone knows so in my opinion the best play is to leave it alone. I wouldnt feel comfortable holding a long or short over night at this point and short swaps are very punishing. That being said, boj arent market makers so it can still happen at anytime, but at the same time I think the real market maker will try use the anticipation and fear of an intervention to trap retail trader. They surely wont hold the bag when it starts to crash except if they plan to bring it back up again soon after.
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