If you recall, during chariots' final tour, RIKU announced that chariots would be resuming activities during 2012 rather than disbanding as originally planned (...). Well, no major announcements have been made yet, but the band's first live in 2012 has been announced.
chariots will take the stage in April to celebrate previous support drummer 兼継 (Kentz) as he retires from music. This live, SELFISH DREAMER with DEAR FRIENDS, will presumably take place over two days at unspecified livehouses in Tokyo and Osaka. No other details have been announced.
I thought that RIKU had announced chariots would be reviving as a full band, but it seems to still be a solo project: the chariots lineup for that day features RIKU and guest players guitarist シノ (SHINO, ex-SCISSORS), bassist 迅 (Jin, ex-UnsraW), and drummer 鈴音 (Suzune, ex-AND).