Animate has posted information on the DVD releases for Hetalia: The World Twinkle. The series will be released in 3 DVDs containing five episodes and an additional unaired OVA episode. Additionally, the sets will be released in three versions - Animate Limited, Limited, and Regular Editions. The Animate Limited Editions each come with a Vocal CD focusing on a different character.
Volume 1 will be released on October 28, 2015. It’ll contained the unaired episode “Germany and Cohabitation” as well as a CD with the South Italy, France, and Russia covers of Hetalian☆Jet. It also comes with an Application for a Seiyuu event on March 12, 2016.
Volume 2 will be released on November 25, 2015. It’ll contain the unaired episode “Netherlands and Isolationist Japan“ as well as a CD with the Japan, England, and China covers of Hetalian☆Jet. It also comes with an Application for a Seiyuu event on April 16, 2016.
Volume 3 will be released on December 25, 2015. It’ll contain the unaired episode “The Ruler of Scandinavia and The King of Eastern Europe“ as well as a CD with the Germany and America covers of Hetalian☆Jet. It also comes with an Application for a Seiyuu event on May 16, 2016.
Mod Note: As of right now, there isn’t any indication that there will be more DVDs after these three, which means that The World Twinkle currently clocks in at 15 episodes plus an additional 3 OVA episodes. It’s an odd number of episodes for a season, to say the least, and even Japanese fandom seems a bit confused. That said, The Beautiful World was also a format/release change from previous seasons, so I guess we’ll just have to wait and see.