Universal 4K Blu-ray

Universal > Sony International, both a huge step up from old Blu-ray, but Sony international applied additional filtering: https://slow.pics/c/Cba9eFdD

Also they are cropped to 1.78 from 1.85

Theatrical: Universum Film Germany Blu-ray 2004 Director's Cut: Sony Director's Cut DVD 2017 Director's Cut: Sony Blu-ray

Theatrical: Universum Film Germany Blu-ray (caveat: not entirely English friendly, R1 DVD for a more English friendly release)
2004 Director's Cut: Sony Director's Cut DVD
2017 Director's Cut: Sony Blu-ray

Theatrical: The UK DVD has a DTS 5.1 track

The Sony Blu-ray is missing the commentary from the DC DVD

Michael Mann changed it so much for the new cut that it no longer lined up.

Paramount/Plaion Spain/Italy 4K Blu-ray

Paramount/Plaion Spain/Italy 4K Blu-ray has better encoding than the US 4K Blu-ray.

Paramount US 4K Blu-ray: the EUR 4K has missing dialog.

WB 4K Blu-ray

WB 4K Blu-ray, caveat: mild DNR throughout the transfer, non-IMAX scenes appear soft due to being scanned from an interpositive rather than the original camera negative.

Best Buy exclusive Steelbook Blu-ray has the exclusive The Dark Knight Reborn Featurette

Sony 4K Blu-ray

Sony 4K Blu-ray