The UBS Economics expects "the central bank to raise its quantitative easing Asset Purchase Programme again at this week's upcoming board meeting." The new governor, that is expected to take the power in April, "are likely to significantly increase domestic JGB purchases, and may eventually consider formally targeting the yen or buying foreign bonds if the new government changes the BoJ law."
In this line, UBS raise its "one and three month USDJPY forecasts from 80 and 85 respectively to 85 and 88 with a risk that the pair trades as high as 90 over the next few months."