If I amn't wrong, Metawin was one of the first casino that came up with the idea of VIP transfer. It had lots of openings in the past but I can't speak about it right now, they might plan another wave of VIP transfer in the future but if you are an exceptional player, I advise you to contact customer support, provide proofs of you being a VIP player on the current casino where you play right now and if you are an exceptional player, they might offer you a VIP transfer despite the fact that it's not currently active.
I suggest you to visit Metawin and contact their support or contact the owner on Twitter - x.com/Skelhorn/