i guess something in the realms of cloud-producing. maybe some techniques that further alleviate producing professionally sounding music for non-musicians via key and groove extraction. also i could imagine someone coming up with an alternative controller type, making chord structures and scales easier to understand and to control for non-musicians. non of these are revolutionary ideas, however, i'd also love to have an integrated midi keyboard / software combo, that teaches me music theory and playing songs with lit keys and small rewards when i do something right, because i'm a lazy bastard. it would have to be called pavlov and slap me in the head every once in a while.