Ok, this is daft, spent 3 hours in the queue for the lobby to crash with a 3054 error, then when I relaunched it noticed it was showing Shadowbringer. Checked my account and found that Endwalker had been unregistered for some strange reason. managed to get the registration code from the square store and relaunched FFXIV and Endwalker was picked up this time only to find I now have another few hours to wait to get in as it is over 5k in the queue at this time.
Was hoping to get my levelling dailies done before I start my night shift, but I guess that isn't happening.