So, this is the big one, the styling upgrade.
Everything else that is on the to-do list for the website will be easier (or doable in the first place) after this switch.

It will, however, take a good while to implement and as a result, the website will be in maintainance mode for several hours, starting at 2016-05-15 07:00 (UTC).

This is your last chance to visit the Dev Site and give feedback on the styling before it goes live – I’m not likely to redo anything of significiance afterwards.