Idk how everyone else feels, but one of the best eras playing this game was when devs came out with a bunch of new heroes (pleakley was one of them) at a time. I believe it was to get a variety of lines in Arena/coliseum/war. Regardless, that made it interesting and kept me busy trying to upgrade the heroes that i wanted.
Thus, double the amount of new heroes per month. The more hero options, the merrier.