I personally believe ItsNickster has applied and joined. I don't know why and I have no evidence to suggest he has, but I think a Master-level APEX autist who has already collaborated with V-Tubers and knows his Nijisanji may be tempted to try his hand.
He has 12.5K YouTube subs and his stream VODs typically don't reach 1K views, middling-but-not-Watson-tier Japanese, and is generally pretty decent in front of the camera. He's networked with Froot, and has been acknowledged by Bora and Aqua. He'd be a retard to have not at least thrown his hat in the ring.