My current setup
Various low power USB 2.0 Peripherals plugged into hub
I have the one monitor daisy chained into the other which also has an ethernet 1 Gb/s connection and the USB hub connection. This is all connected to my MacBook Pro with the Thunderbolt 2 connection.
Upgrading to 2016 MacBook Pro
I thought it would be relatively simple to simply get a Thunderbolt 2 to Thunderbolt 3 adapter.However, Apple support said that this is not possible.
If that is true, why? They said I would need an adapter for each Thunderbolt Display. An adapter for the ethernet, and an adapter for the USB 2.0 hub.
That's a total of 4 adapters!
However, I'm wondering if that is true since you can buy hubs (OWC Thunderbolt 2 Dock) which this guide says will run over a single Thunderbolt 2 to Thunderbolt 3 adapter. These hubs can have various thunderbolt/hdmi/ethernet connections. In principle, aren't I using the Thunderbolt display in the same manner?