There will probably be hubs for those. There's already one for both HDMI and USB after all.
That's true, but it ruins a seamless clean look. I wanted to get an iMac with a 12-South stand on the back of it so I could put my iTunes portable HDD on there and have it plugged in all the time out of sight. Now I'll have this thing hanging down on the desk and the HDD hanging out from the hub like messy octopus.
I realize I'm bing picky, but I guess I think there should still be some USB-A port(s) since it's still so widely used.