I try to get all of the play through options when I purchase a game like Heroe's Rise and if there is an option to join the InfraCircle I will definitely play that option out. It would be so diverse from the first game that I would really curious to see how Zach handled it.
I also thought Culic was a relatively intriguing character. Some of his past experiences that the player witnessed through speedy's memories made his anger seem more understandable. That absolutely doesn't mean I condone what he has done, but since the author made Prodigal a redeemable character I could see Zach doing that with Culic as well. Since Culic had a tendency to deliver speeches, he might turn into a famous Orator for Ani-Powered folks. It would be fascinating to see if he ever became a potential romance. Zach seems to have a more open and excepting view of different types of love, and this option would feel very different from Prodigal. Also it could be an interesting villain romance route if that's the character type you are playing. Although, if I recall correctly he frequently wrote about how hideous his mosquito face was and that his voice was annoying. In fact, throughout the second game your character actually expresses a fair amount of bigotry against Culic specifically based on his appearance, which I think may have been intentional. Anyway, I would really like to see him return in another game just to get more information on the character.