According to the official website, an unaired episode of Ikoku Meiro no Croisée
will be included in the third volume of the Blu-ray & DVD. It will be released on November 25th. Each of the seven volumes of the Blu-ray & DVDs will also carry a short SD anime titled "Yune & Alice". The TV series is twelve episodes long. The first episode will be aired on July 3rd.
Source: Ikokumeiro official website
Ikoku Meiro no Croisée Special
Ikoku Meiro no Croisée: Yune & Alice