When Cyborg was rebooted in the New52, I had a lot of hope that DC would finally have an African American character who could hold a solo book. I was wrong.
For years, Martian Manhunter was the only Justice League member who couldn't hold an ongoing series. He couldn't hold one for the following reasons:
1. He was a sad sack ("The only interesting thing about me is that my entire race was wiped out."-J'onn J'onzz, The Martian Manhunter)
2. He had no notable villains or even an arch-nemesis.
3. He had no supporting characters or interesting mythology.
4. He had no sex appeal for readers (I'm serious. There's a reason why Aquaman is shirtless all the time and why Catwoman loves to show cleavage. Other characters with sex appeal include Superman, Batman, Flash, Green Lantern, Green Arrow, and Wonder Woman).
Who is the only other Justice League founder with the exact same issues? Cyborg.
Characters like them can't hold books. They're just don't have real appeal. They're not interesting. No one wants to walk a day in their shoes.
My prediction is that since Cyborg can't hold a book, he'll slowly take over J'onn's role as the "heart" of the Justice League--the guy who has nothing else going for him.
Victor has no life outside of the Justice League. He has no real friends. And I'm very disappointed.
Unlike a lot of people, I gave Cyborg a chance. Now I just wish John Stewart were a founder instead.