Originally scheduled for a March 20th release, the release of Yakuza 6: The Song of Life for the US market has been delayed. The new release date is April 17th according to a post from the official Yakuza Twitter account:
An important update on Yakuza 6 : The Song of Life pic.twitter.com/8MILlBPI4x
— Yakuza Game (@yakuzagame) February 2, 2018
It is not all bad news, though. A release date for the Yakuza 6 demo has been announced; you can expect that on February 27th. Your save progress from the demo will carry over to the full game once it is released.