According to this promotional picture, the date is February 19, 2014. It will be available in two editions, the Limited Edition and the Regular Edition.
Details:
Blu-ray Limited Edition- 12,000yen (taxes excluded）
DVD Limited Edition- 11,000yen （taxes excluded）
[Product specifications for Limited Edition]
■4 Discs set （2 discs for the main story plus 2 gifts discs）
Disc1：Mirai Fukuin: The Movie
Disc2： Movie theater version of: Kara no Kyoukai: extra chorus
Special Disc1： Original Soundtrack CD
Special Disc2： Kara no Kyoukai: Final Record Drama CD
■Box Cover Illustration by Takeuchi Takashi
■Pocket edition pamphlet
■Brand new special booklet
■Deluxe pinup
■Special clip： exclusive Mirai Fukuin CM
Mirai Fukuin DVD Regular Edition 4,800yen (tax excluded)
extra chorus DVD Regular Edition 3,800yen (tax excluded)
[Product specifications for DVD Regular Edition]
■Jacket drawn by ufotable
■1 disc for the main story
■Jewel Case
■Exclusive Mirai Fukuin CM
J.The.E 
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