[eridius]

> adaptor for headphones because I use hd598s and will never use wireless headphones

The MBP has the standard 3.5mm headphone jack.

> I honestly can't point to a gain except maybe able to click on a emote faster using the magic bar and other odds and sods that a magic bar offers.

You're sounding awfully negative about something you haven't even used. For example, the F-key shortcuts you mentioned, if Microsoft is smart they'll add Touch Bar support so you get even better shortcuts than having to remember which F-key does what with what modifiers.

> yubikey will be useless and will need a replacement

The whole world is slowly moving to USB-C, this had to happen eventually. The fact that Yubikey doesn't have a version that supports USB-C is their own fault. And in fact 3 months ago they had a whole post about how they have a prototype but don't want to bother actually bringing it to market yet (https://www.yubico.com/2016/07/yubikey-route-usb-c/). I sure hope that today's announcement makes them realize that they do need to get off their ass and release the USB-C version.