IMO docking stations are the "faster horse". We could've used better docks a few years ago, but now the idea seems silly for most use cases. Why carry around a big ol' laptop when your data is available everywhere, is largely device-agnostic, on-demand? You don't need to carry around an email or spreadsheet or word processing machine -
everything is an email, spreadsheet, word processing machine. You don't need to carry a device that contains your work, because your work accessible from anywhere.
If you're particularly security-conscious, great, throw everything up in a VPN (as everyone already does now) and issue company hardware if you must. At the end of the day having multiple bits of hardware for different contexts not only makes working easier, it also prevents you from having a bunch of hardware floating around on buses, trains, and airplanes containing your sensitive data. Not only that, you're dramatically reducing your odds of data loss.
There are real road-warrior types who will need actual "full" laptops, but the vast majority of people hauling big laptops to and from work everyday really just need a machine for work, and a machine for home, and nothing in between.