Comprehensive tutorials are what would help a crowd grow, not just for a new guilty gear but any fighter imo, especially newcomers who don't always have an accessible arcade to learn from experienced players. This concept applies even greater to games such as gg, due to the insufficient net-play available. Games like sf4 are extremely successful for many reasons but probably one of the biggest reasons for it is because of easy accessibility. Personally, I'd just be happy if they put AC or even slash on ggpo:)