If an extended cut does end up happening, there’s little doubt that it will help improve the quality of the overall film.
Jason Momoa’s Aquaman no doubt suffered the most from cuts, as he had essentially no introduction; he just showed up in the background of the scene with Bruce Wayne at the bar.
It’s a small wonder that Amber Heard’s Mera even made it into the film at all.
One of the biggest criticisms for Justice League is how much was left on the cutting room floor, massively cutting down the screen time of its titular heroes.