Heroic Quest Rewards
I know there is a 3* hero available on normal so why not make a 4* version of that 3* on heroic. I Know this will never happen but honestly rewards for Heroic and Master lvl doesnt even apply to me as i dont have many 5*.
Adding a 4* version of the 3* wouldnt upset the balance the of the game as 5* is currently the end game and also would make the quest more enticing knowing that a 4* hero is the reward for 100%.
Anyways thats my 2 cent lol.