There is a small amount of data due from Japan today and that's about it.
2350GMT - Services PPI for March, expected is +3.3% y/y and prior was also +3.3%. This is not a market focus.
Much later, 0430GMT - All Industry Activity Index for February, expected is -1.0%, prior was +1.9%
In between those two we'll hear from Bank of Japan Deputy Governor Hiroshi Nakaso, he is speaking at the International Seminar of the Securities Analysts Association of Japan in Tokyo, due at 0300GMT