Usb3.0 for new WD for macs

The new iMacs coming out next month do not have FireWire bot only usb3.0.

Is WD planning to include usb3.0 in future studio for macs?

They already are with the passport edge and passport for Mac, so I guess is only a matter of time.

http://www.wdc.com/en/products/external/portableformac/