Australia are getting a standard 4K release of THE SUBSTANCE (2024) in May. But, for anyone looking for a SteelBook Edition of this film; France are getting one, which will be available from FNAC and Amazon. I don't think that FNAC ship outside of Europe, but Amazon do.
Release date is March 13th. The film has English and French audio, but there are no English subtitles. A Blu-ray is also included and it will probably be locked to Region B, which is compatible with NZ players.