According to the official twitter. a TV series of OVA Tamayura was announced at a live event held on January 22nd.
Tamayura official website
A Hinamatsuri festival will be held in Takehara City, the model city of Tamayura, from February 11th. A PR poster featuring the characters will be displayed in the city.
Image of the poster
Sources: Picture of the announcement at the event, Tamayura official twitter
