Whelp, as this forum’s unofficial “Mr. Tuesday,” it’s more than about time that I throw my 2 cents into the ring:
I have been a Killer Instinct fan since 1995, and I’ve been mashing buttons alongside you guys on Xbox Live since Launch Day, and it’s been an incredible journey to watch this amazing new game evolve and grow from 2013 to now. I know that no matter what, I’ll keep on playing, but it is a genuine bummer to see the word “complete” thrown around by the KI team- especially since I thought that this edition was going to continuously updated like one of those “games as a service” type games, like Minecraft or something.
I really wanted just one more brand-new monstery fighter to show up to expand the universe and fill out the roster to a nice, round “30,” but that seems unlikely with the talk of completeness and “no more balance updates.” Kilgore is a ton of fun, but since I’m not big on most of the human cast, (outside of Thunder; Thunder rocks), Shin & Eagle didn’t leave as big of an impression on me. They aren’t bad characters or anything, but it’s just a preference thing, which leads me to my next point:
The survey! I wonder what the results of that (at the time) epic survey are being used for, or why they were asked? I remember that it was noted that the results influenced Kilgore’s development, but why tease remix fighters like Sharkman and ENT Aganos, or brand-new fighters like the Halo Brute or the Wendigo? (Wendigos made it into the comic, but still…)
“Complete” may refer to gameplay, but what about cosmetics? Why create a huge, empty “Colors” menu to exclusively host the Omen colors? What about the ending page once you defeat Gargos at the end of Shadow Lords that asks players to “Stay tuned for updates!”? More accessories, skins, colors, and above all else, story mode content is still possible, right??? 
Going back to the comic, issue #6 of 6 comes out next week, and I’m still holding out the faintest of hope that there will be some kind of revelation that ties back into the game*, but still- the term “Complete” still burns.
Surely KI isn’t done-done, and I think that more KI will appear before many have guessed in the doomy & gloomy posts about more content/sequel in the far-future, but still- I want more! Blarg- I’m still having fun with KI, and I’ll admit that this seems like the darkest bout of radio silence that I’ve ever seen since the game’s launch, but I’ve still got a smidgen of hope that there is something stirring behind the curtain. I mean, why make a comic and fund major tournaments if the KI Crew was donzo with KI?
We’ll likely find out more before too long, but I’ll still be biting off faces with my favorite fire breathing dinosaur cyborg either way. 
Fight on,
-Zenek
*Something Aganos-related, perhaps? 