RE: Michael's Long Box: WildC.A.T.s Sourcebook #1 (1993, WildStorm)
I feel horrible. I have looked at this post like at least four times to scroll down and giggle at a young J Scott Campbell's Zealot. And man you are right about that horrible layout job on the lettering over Jae Lee's art.
They really did create a fairly cohesive universe there. I was going to be typing how I can't believe DC really doesn't do more with all these characters, but it seems they have definitely tried:
DC Comics relaunched its DC Universe imprint in September 2011, which included the integration of the Wildstorm characters into the DC Universe. The initial wave of relaunched titles included: Voodoo and Grifter solo series, and a revived Stormwatch title featuring Jack Hawksmoor, Midnighter, Apollo, the Engineer, and Jenny Quantum.[13][14][15] The Teen Titans spin-off title The Ravagers featured Caitlin Fairchild and Warblade as part of the cast,[16][17] while WildC.A.T.s villain Helspont appeared in Superman #7 and #8,[18][19] Grunge appeared in Superboy #8,[20] Zealot appeared in Deathstroke #9,[21] and Spartan appeared in Team 7 #5.[22] Revival
On February 16, 2017, Wildstorm was officially revived with The Wild Storm #1 by Warren Ellis.
Fairchild and Warblade were in a Titans off shoot wtf!
DC's tried to do different things with them over the years, but I think the main problem is that these characters were born under 90's continuity from a different company entirely. Image fans and DC fans don't tend to be an overlapping base, so I can see fans of the different WildStorm books not even realizing these things happened until it's too late to do more than pick up the back issues, while the DC readers may recognize the Gen13 cameos due to that title's re-launches, they may not have any idea characters like Grifter and Warblade have 20+ years of history behind them too because they weren't Image readers back in the day.