According the site’s countdown timer, more info will be released at 11AM JST on September 13, 2018.
An enigmatic new teaser site (available here) has opened to announce a new, original anime project from director Tsutomu Mizushima and series composer Michiko Yokote, two of the creative talents behind the SHIROBAKO and Prison School TV anime series.
Aside from the word “dodo” in the URL, a background image of a rocky, desert landscape, and some airplane sound effects, no further information is yet available on the new project.