Did those really use gyration Rick? Or did they use something akin to gyration? Did they actually pay Gyration for the use of their product in KT&T and WWT? I find it hard to believe that entering a contract for an undisclosed amount of money would only yeild a couple games that used it. You must see that concentrating on gyration rather than just implementing it in a few games, could easily cause a pardigm shift. Instead of making games that work off the gimmick of it; games of all genres could use it for the more advanced features, thus causing a shift. Come to think of it, what causes a paradigm shift?
My answer is more precise aiming. In history it went from D-pad to analog stick to dual analog stick. You can't get much more complicated than dual analog stick. Adding another would be disastrous. So how do you aim more precise when analog-sticks have reached their peak? Gyration, Dual-handed controllers. It will allow for "life-like" precision aiming and expand game abilities ten-fold. Even if it wasn't dual-handed, something like PaleZero mentioned would still allow for greater accuracy. The only problem I see with his idea is some genres seen today would be hard to implement. Fighters for instance would be ridiculous. A dual-handed flight stick type controller, that is essentially a "this-gen" controller split in half, would work for all genres while adding far more precise aiming. It would be like going from Golden-eye, which used the c-buttons for aiming, to Halo with it's dual analog controller. This jump would be far greater than an "upgrade." It would allow games that always relied on button naming, to use actual movements to replicate what needs to be done on-screen. It also opens up many new genres, and sub-genres. An archery game could never realized this gen due to it's lackluster ability to be entertaining. With this controller, you could essentially do all the things needed to fire an arrow, instead of pressing random button 1, that has nothing to do with the actually game itself.
They could add a track-ball for mouse-like aiming, but that isn't simplifing the process any. I use a mouse everyday, yet using a track ball seems ackward to me. I could adapt, but that's because of the "practice" I recieved from this generation games. Once you have to teach hard-core gamers something, you automatically lose.