The previously announced Fate/hollow ataraxia REMASTERED will be released this year.
The release date was mentioned in a pamphlet handed out during May 18 JST’s Fate/Stay Night 20th Anniversary Concert Finale and confirmed by the official Fate/stay night REMASTERED X/Twitter account.
Fate/hollow ataraxia REMASTERED was announced last year for Steam and Nintendo Switch. The original was first released in Japan in 2005 for PC, with a PS Vita version following in 2014.
Fate/hollow ataraxia is a fan disc that takes place half a year after the events of Fate/stay night. Its story revolves around a particular four-day period. The character Caren Hortensia is introduced in the game.
Source: @Fate_SN_Game (via Gematsu)