Compbros
Man of Tomorrow
These alts will be nowhere near the development time as one complete character, they said it takes 6 weeks for a character to be compiled, all that's needed for alts is a different costume/skin, different voice and possibly different hitbox. They could literally spend 2 months and probably have 20 different alts in this vain and it appeases fans that want to play as a John Stewart or a Wally West instead of a month and a half for a single "new" character.
Again, I'm not saying "alts instead of new characters", I'm saying "alts on top of new characters".