The Fate/kaleid liner Prisma Illya Anniversary live event "Prisma Klangfest ~kaleidoscope~" announced in Tokyo on Saturday that production on a new original video anime in Hiroshi Hirayama and Type-Moon's franchise has been green-lit. A stage panel at the Machi Asobi vol.19 event had announced in October 2017 that an anime sequel project had been green-lit.
Hiroyama's original Fate/kaleid liner Prisma Illya manga re-imagines the Fate/stay night character Illyasviel von Einzbern in an alternate universe as a magical girl. Fate/kaleid liner Prisma Illya ran in Kadokawa Shoten's Comp Ace from 2007 to 2008. Hiroyama then launched several sequel manga series.
The first television anime premiered in 2013. The second season, Fate/kaleid liner Prisma Illya 2wei!, premiered in 2014, followed by the third season titled Fate/kaleid liner Prisma Illya 2wei Herz! in 2015. The fourth and latest season, Fate/kaleid liner Prisma☆Illya 3rei!!, premiered in July 2016.
Sentai Filmworks released the first three seasons on home video. Crunchyroll streamed the fourth season as it aired, and it also streamed the first three seasons.
Gekijōban Fate/kaleid liner Prisma Illya: Sekka no Chikai, the first anime film in the franchise, opened in Japan on August 2017. The film topped Japan's mini-theater rankings list for three consecutive weekends after it opened.
Source: Comic Natalie