Well here's the ideas I came up with for characters:
Ace - baseball throwing Gambit kind of knockoff
Behemoth - Hulk knockoff, bruiser that can grow to huge size
Blurred Lion - Speedster cat man
Doctor Nope - vaguely spiderman clone without webs but a toxic blast and 360 vision instead of danger sense
Honey Badger - Wolverine/Deadpool knockoff
King (Queen) Kickass - Stripped down superman/wonder woman clone with massive ego and personality
Patriot - Captain America type with a shield built around Crusader from 4th edition Champions
Street Knight - Batman knockoff, staff fighter
Supercollider - Cannonball knockoff, super easy champions character concept that is very effective
Teeny - shrinker
Vulcan - Thor type with hammer, but the Roman god of the forge
Wariangle - Iron Man type, but with a gun instead of repulsors
I am trying to come up with more modern sounding names that would appeal to younger gamers, stuff that feels more like something a new Stan Lee would come up with. I don't want 800 characters because we need like 6 versions of them with details on each for the players, and two images for each.
What it looks like the chapters will break down like is to start at 250 points and give 25 point batches of upgrades before the next chapter as xps. That way they get a steady progression of power and feel like a tutorial adding new abilities as the scenario unfolds.
That said, characters like Street Knight are so skill based and the first scenario has zero skill use in it, so that he'll start out kind of lower points and get a lot more between adventures. However, I don't envision characters getting point values or doing math at all in this until later in the adventure, so his point progression and the inconsistency between characters can be hidden behind the scenes.
I am not so sure about ace, but there's no energy projector character that is really popular right now (other than Iron Man I guess). I want an Iron Man character, but it would be good to have a classic energy projector or two for players to choose from. Force field, blast, flight. Its a classic Champions build but almost unknown in comics, oddly enough.