Seems unlikely. In the e-bike world, even though we have plenty of hub motors, they generally aren't used for higher performance bikes because they are extremely heavy and add lots of unsprung weight. Also, cooling them is difficult. Plus, you don't get enough torque from them. In the plaid, the motors have a ~9:1 gear reduction to gain more torque. The wheel motors would be even heavier than the current rear drive motors because you'd need thicker windings to handle more current to produce the same torque. Probably 100 lbs or more per wheel.