Maintenance for the week of November 18:
• PC/Mac: No maintenance – November 18
• ESO Store and Account System for maintenance – November 19, 9:00AM EST (14:00 UTC) - 6:00PM EST (23:00 UTC)
• PlayStation®: EU megaserver for maintenance – November 19, 23:00 UTC (6:00PM EST) - November 20, 17:00 UTC (12:00PM EST) https://forums.elderscrollsonline.com/en/discussion/668861
For this size of a content patch the DT alone will probably be 6-8 hours and the patch to download on your launcher fairly massive. Then there will likely be daily problems for a week or more as they hotfix and bring the Servers back down for incremental patches with bug fixes. It's likely that the Servers will be unstable all the way until March 17th.
Based on how long it took the PTS to update the first time, and then the 9GB plus download after that, figure you might be logging in sometime this evening.
Enjoy the game, life is what you really want to be worried about.
PakKat "Everything was going well, until I died"
Gary Gravestink "I am glad you died, I needed the help"