I had to load a 15+ G download last night before I could play ESOTU. The download took almost 10 hours to install. The file size reminded me of the download I had to do when I loaded the game for the first time on launch day. When I went to see the download progress, I saw all of my previous downloads with their install dates. The download for ESOTU that I did on 6/9 was not there. So it looks like the install I did on launch day was deleted when the new install started to download. My brother did his install in less than an hour, maybe less than 30 minutes. I hope all of the updates are not going to be like this.
Tarkus Aquila - Imperial Templar
Klaaz - Khajit Nightblade
Fractiz - Altmer Sorcerer
Jonsir Vheti - Dunmer Dragonknight
Kills-With-Grin - Argonian Dragonknight
Myrddin the Mystic - Breton Warden
PS4 ESOTU Adventurer since June 2015