You have a lot of nice modules here, with much scope for experimentation (even without A*B+C and Compare 2). About all I might suggest would be some attenuverters (3xMIA or similar). I think that, more than new acquisitions, you probably need to think of ways to shake up or freshen up your patching routine. Maybe focus on one or two modules at a time and really see what you can do with those at the centre, bringing in others for support as needed.