I expected USDJPY continue to drift upward today. Yesterday FOMC statement and Yellen's speech certainly helped a lot. Today is BOJ's turn and I really don't think they will reverse anything as their 2% inflation target is just still too far away. Actually since USDJPY strengthening, it helped push them toward their goal a bit closer and I think they will be more than happy to add to the fire by hinting a neutral to further QE from their side of the trade.
Sentiment wise, it's gonna be a bit hard to grasp as this is a tentative event. Nevertheless, from the Retail's positioning USD is net Long vs JPY mixed. In my opinion, this time the USDJPY is "under-longed". People should more bullish on this pair given the fundamental lined up and the Carry Trade potential.
I'm long 1/2 position now and gonna go long another 1/2 if price retrace to the Open at 112.2. My SL is 111.9 and TP is 113.4.