When in the future would it be possible to use trackballs on controllers.

Me being a competitive call of duty player using a controller, the number one problem with playing and fps with controller is aiming with the analog sticks. You can get used to them however you never really can be as precise as a keyboard and mouse players. A trackball would not be as precise as a mouse, it would be way closer and allows console players more of a chance at beating a pc player in a gunfight. Since razer has made some of the best controller of competitive gaming, I think razer could be the first to make a controller able really compete with pc players.