The latest weekly Gainax site top page illustration is grabbing plenty of attention with ZEKKYOU—the artist behind the Toradora! manga and the occational Haruhi Suzumiya gender bender doujinshi—offering a bunny girl interpretation of the girls of FLCL.
Gainax isn't the only one looking back on FLCL. If this reignites your interest in the series and you have time for a long read, the Onion's pop media spin-off AV Club is doing an episode-by-episode reexamination of the series. They're currently on episode 2 - "Fire Starter".