I'm not going to say anything when it comes to a new Guilty Gear game, since I'm too damn scrub to have a good opinion on that shit, but I do think that ASW needs to realize that GG and BB shouldn't be competing against one another; instead they should be working together to get a larger market share.
Let me compare it to something I actually know about; Blazblue is a Ford Focus and Guilty Gear is a Ford GT. Both are made by the same company, and both are good cars. The Focus is a fun little thing, really great for new drivers, and is still a nice car to drive even for people that really enjoy racing. Along with that, it's cheap, and brings in a lot of money to Ford.
The GT however, takes a lot more skill to drive, as it's a much more powerful car and can be very touchy. It's also much more expensive, and Ford doesn't really make much money on them anyway. However, despite this, for people that really enjoy cars, the Ford GT is amazing, fun as hell to drive, and very rewarding.
To my point, both BlazBlue and Guilty Gear need each other. Guilty Gear can't be made without Blazblue because otherwise it'd have no funds; no one would just buy Guilty Gear because it only appeals to people very interested in it. Without Guilty Gear, Blazblue could probably live on its own just fine yes, but ArcSys would lose a market share to other hardcore fighters as professionals get bored with it and migrate to something else. Even casuals would move away, as they simply want -a- fighting game, not necessarily Blazblue.
Sure, they could dumb down Guilty Gear, make it more accessible to the casual crowd. But everyone I've met that's had even a passing interest in Blazblue, I've introduced them to Guilty Gear, and they loved it. While they still play Blazblue something fierce, they're learning how to play Guilty Gear just as much, and enjoy the game much more.
Like SJ said, Guilty Gear fans, well we're lazy. What we really have to do is start holding BB tournaments for entry level players, find them online, or what have you, and get them to try Guilty Gear. That's the only way we're going to bring this scene back.