It'd be great if Fantasy Flight released a booster pack with more heroes to use. The 12 guys included in the core game are cool, but a little more variety would be welcome. I know there are more heroes out there, but they're not easy/affordable to acquire. I would gladly plunk down cash for some more guys just to mix up the games some more.
Banners of War will surely help with its new guys, but I need more!