Rakuten leak: Japanese The Dead Heat Breakers, Pearl and Marina amiibo release dates
Aside from news about Mario Tennis Aces and Sushi Striker, Rakuten also appears to have leaked Japanese release dates for The Dead Heat Breakers and the upcoming Pearl / Marina amiibo. These two appear to be on track for April 26 and July 13 respectively.
Note that these dates have not yet been officially announced. Nintendo should be sharing the news during its presentation later today.