when does fooly cooly season 2 come out
It came out on June 2, 2018.
FLCL
The second season, FLCL Progressive, premiered on June 2, 2018 on Adult Swim's Toonami block, while the third and final season, FLCL Alternative, premiered on September 8, 2018. 
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FLCL [SEP] Introduction
The second season, FLCL Progressive, premiered on June 2, 2018 on Adult Swim's Toonami block, while the third and final season, FLCL Alternative, premiered on September 8, 2018. In Japan, "Alternative" and "Progressive" had theatrical screenings with "Alternative" opening on September 7, 2018 and "Progressive" opening on September 28, 2018. The first episode of "FLCL Alternative" unexpectedly premiered on April Fool's Day 2018 at midnight on Toonami in Japanese with English subtitles.