Unless you find a from a Japanese 4K broadcast or a limited Blu-ray (unconfirmed for SSIS-858), stick with the original FHD release.
The release date for SSIS-858 is (specifically Nov 23, 2021, according to official schedules). ssis858 4k 2021
Let me know how else I can assist with a different topic. Unless you find a from a Japanese 4K
English, Chinese, and Indonesian subtitles are commonly available for international audiences. ssis858 4k 2021