The English subtitled Zyuranger DVDs from Shout! Factory now have a release date.
Listed as Power Rangers: Super Sentai Zyuranger: The Complete Series, Amazon has a product listing available for the Shout! Factory subtitled version of Kyoryu Sentai Zyuranger that gives out a release date for the series.
The ten disc box set will be available on February 17, 2015, and is available for pre-order now.