Hi @CausingThought6!
First off, I was lucky enough to have a nearby comic shop with a cool owner who held the KI comics with the coolest covers for me. (The Kan-Ra version is still my favorite!)
As for your pression questions, I might have some of the answers you’re looking for- BUT BEFORE I CONTINUE, THERE WILL BE SPOILERS BELOW!!!
In order, yep the Wendigos showed up really early in the story, and they were the deer-skull-faced horrors as seen on the cover of the second issue. (Gross, but cool!) They were the subservient grunts working for The Coven, who did their best to take down Jago, Kim-Wu, and Tusk. The survivors all got participation awards for trying.
Plenty happened in the comic’s story, especially if you consider it less “more KI adventures forever!” and more “setting KI fans up for the future of the story” with this story. Yes, it’d have been cool to see my favorite monsters in action, but just because Sabrewulf, Riptor, and Eyedol weren’t on the pages, it doesn’t mean that they weren’t doing cool stuff elsewhere. I can’t speak for most of the cast that you listed off, BUT if you break out your magnifying glass, you can spot Hisako, Omen, Maya, Thunder, and if I remember correctly, Shadow Jago in a scene depicting the end-of-the-world battle against the forces of Gargos.
Ah, and not only is the comic SUPER-CANON, the true form of Aganos was hinted at in Shadow Lords ages ago. No spoiler here, but go challenge Gargos at the end of Shadow Lords as Aganos and see just how the normally crap-talking gargoyle reacts to seeing Aganos.
I loved that, because Aganos was a being that even Gargos feared, and that Kan-Ra had NO idea who the war golem really was! Like, if Kan-Ra had to fight the real Aganos, he’d be so out of his league, it’s not even funny. You’re heard of the Light Lords (Ichorien), and Gargos did his best to wipe them out- it turns out that one of their kind was trapped on Earth for thousands of years, and had escaped the initial celestial sucker punch of Gargos upon the Shadow Realm. I’m sure that even with his grand sacrifice, that Aganos will return, but when? In what form? What is the fate of Gargos? I’m looking forward to learning what’s next for our favorite former rockpile soon too…
I sincerely hope that my answers helped, pal! I hope we get more KI comics in the future though, but until then, FIGHT ON!
-Zenek