It would be a level of professionalism I'm not accustomed to seeing in online games. However, with how much bureaucracy goes into their announcement of just weekly events, I don't see how they'll ever implement this.

They clearly don't have a good control over the direction so I think there'd be too much fear of signing themselves up for something they can't deliver. If anything, having them put out a roadmap might actually DECREASE how much we get in future updates.