But I don't believe it will happen.

The USB Connector shell is horrible, it mates up poorly and people are forever flipping it over. It has no tactile feedback that you have it aligned or even right side up. The specs USB3 give are not really world shaking and we will still have to external power full size external drive boxes.

If Apple gets enough market penetration maybe the "standard" can change. As a PC user I'll applaud it.