>>85745003That's only when she gets her new model, not necessarily when she'll redebut. There's nothing stopping her from streaming tonight at 12.01 am in her time zone, if she wants to; hell, she can do her redebut stream right this very minute as I type this, since it's already after midnight JST, and it is now September 22 in the only time zone Niji cares about.
If she wants to wait until her new model is ready before returning, then she will wait. If she does not want to wait for her new model to be ready, and is willing to stream using her old model and/or a PNG in the interim, then that is what she will do. That's the beauty of being an indie vtuber - you don't need permission from management to stream.