According to a news post from GLEAT today, Brass Knuckles JUN is apparently done with the promotion. Depending on how you interpret translation of a conversation JUN had with President Hiroyuki Suzuki at yesterday’s event, JUN either asked for it it or talked himself into being fired. It sounded like JUN was going to be traveling starting today and requested his contract be terminated and perhaps he work as a freelancer. Either way, JUN is no longer with the promotion and, based on the popularity of his TheSick faction and having a t-shirt that just went on sale, perhaps at a bad time.
I did come across a social media post from JUN after this (posted earlier today) who confirmed he has left the promotion after 4+ years and perhaps somewhat regretted how the conversation went. But he will be moving on to compete elsewhere as a freelancer for now.