Teasing Aquaman’s Solo Adventure

We have to mention Aquaman, whose solo film arrives in 2018.
Like Cyborg’s, most of Aquaman’s backstory was deleted from Justice League. But we were supposed to learn much more about Atlantis than we saw in the film. Mera was expected to show up in more scenes, Vulko played an essential part in the Aquaman arc, Orm was the King of Atlantis, and Aquaman's refusal to join the League was explored in greater detail.
Aquaman is one of Justice League’s most enjoyable characters, but he could have been so much more.
What do you think? Were all of these deleted scenes essential? We feel that Justice League would have been a better movie had they been left in.
