My laptop is my only computer. Under normal circumstances, it is connected to a monitor, speakers, and a USB 3 hub for a couple of hard drives. That amount of connections is not possible for the new MacBook. I do occasionally disconnect but not often, at the time the 15 MacBook pro made more sense than an iMac. This laptop is not meant for people like me. I can't understand why someone wouldn't buy a MacBook air which is still thin and light with a better processor and more ports.
So you would connect this to a hub 100% exactly the same as you do today. In fact, you could have less connections because you could leave your desk setup connected to the hub (ie. dock) and when you sit down you make 1 connection for power, monitors, and data.