Following news of the possibility of the Blu-Ray release date, now it may have become known that a Justice League extended version may be hitting home video.
A listing has surfaced on Amazon's German site for a "Justice League Digibook (4K Ultra HD + Blu-ray)" which features a play time of 135 minutes.
The theatrical release of Justice League was 120 minutes, so if the listing holds true, it looks as if an extra 15 minutes may be tacked on to Justice League.
It's also probably safe to assume it's for the release of Joss Whedon's Justice League and not Zack Snyder's version.
The site also says the Justice League Blu-Ray will be released on March 29th, which is similar to Best Buy's listing of March 13th.