Watanabe has announced over Twitter that Pour Lui will be graduating from BiS on March 4th at the tour final at Ryogoku Kokugikan . No other details at this time.
At the live she said one thing that stands out. 「わたしにとってBiSは必要じゃなくなって、BiSにもわたしが必要じゃなくなってました。」. Basically she said this: For me, BiS is no longer necessary, and I am not necessary for BiS.”