Veteran and Hero character spawns are popular and add a lot to the meta but as you know the cap of 1 per match is a little limiting and often prone to bad luck. Have you considered any new spawn rules, ways to earn spawns or increasing the cap on larger maps and modes?
We‘re long past the consideration stage, I'm afraid; that was months ago. We‘re just waiting for the system we want to govern that so we can implement it properly in-game.
We might increase in general the number of spawns until we have that system after we see the effect of all heros out in the game, but that won‘t happen beforehand.