A movie of "Sora wo Miageru Shoujo no Hitomi ni Utsuru Sekai
" was announced to be premiered on April 18th. Kyoto Animation adds some new scenes to the climax part of the TV series and releases it as a director's cut edition.
Source: Newtype channel
The title of the movie is "Tenjyou-jin to Akuto-jin Saigo no Tatakai".
Source: Screenshot of the announcement