It’s a Japanese release and won’t have subtitles, but the 4K restoration is about to be released 😃
https://www.facebook.com/KaijuProductions1974/posts/1727064204142800
From the post:
NOT APRIL FOOL’S! “KING KONG VS GODZILLA” UHD BLU-RAY! Starting this coming May 14th, Toho Video is unleashing a lotta Kong! First up is a deluxe box set containing the incredible 4K Remaster of KING KONG VS GODZILLA on two discs. The first will be on a 4K Ultra High Definition Blu-ray disc for optimal picture and sound in 2160p with HDR. The second disc features the same 4K Remaster, but on a 1080p standard HD Blu-ray disc. No English Subtitles.
Special Features on Disc 1 are the Original Trailer and Teaser. Disc 2 boasts the Champion Festival version of the film (a shorter Kiddie Matinee cut), Trailer, Teaser, and Still Gallery. This Keepsake Box release will also feature two special booklets. A 28-page “Storybook” with 28 pages of original storyboards by Shigeru Komatsuzaki, and the “Unpublished Photo Book,” containing 116 pages of never-before-seen color photos taken by art director Akira Watanabe. MSRP: ¥14,850 JPN ($135.00 USD).
A stand-alone release of the 4K Remaster on 1080p Blu-ray will also be available with the same special features as Disc 2 from the box set and will retail for ¥5170 JPN ($47.00 USD) MSRP. Also dropping from Toho Video will be a new Blu-ray release for KING KONG ESCAPES, boasting a video interview with star Linda Miller, as well as the shorter Champion Festival cut of the film, Trailer, and a Still Gallery. MSRP: ¥5170 JPN ($47.00 USD). Toho Video will also be issuing 4K UHD Blu-rays of Legendary’s GODZILLA (2014) and GODZILLA: KING OF THE MONSTERS (2019). (poster’s note: clearly, 4Ks of Legendary’s films aren’t the big news story 😃 )
This information was released by Tower Records Japan and announced on FB by Linda Miller, herself. There are no Amazon Japan links, yet. For now, check out the listings on Tower Records Japan: tower.jp/article/feature_item/2021/04/01/2501 and CD Japan: cdjapan.co.jp/product/TBR-31162D