Wonder Egg Priority Special Edition (ワンダーエッグ・プライオリティ 特別編, Wandā Eggu Puraioriti Tokubetsu-hen?) continues from where the series left off at Episode 12 and it presents the conclusion of the Wonder Egg Priority anime series. It is expected to have a 1-hour runtime.

There has been speculation on the internet that half of the special will be recap. This was stated on a Wonder Egg Priority discord server by an animator (known as EVAKOI) who worked on the show.

Source: Reddit