Well after the delay I tried to see what I could do on my own. The repair button was grayed out so that wasn't an option. Uninstalled, redownloaded and reinstalled - got my save games from the origin cloud and then it worked. Tried the Solas questline and that worked too. I noticed that this time the weekend event showed up on my loading screen - so I am not sure if I did it during the change over the first time - or if it has to do with an outstanding bug with the game...but I can now progress Solas along and catch him up with the rest of the team.
Mildly terrifying indeed though.
I just ran repair myself and was able to launch the game with no issues.
It is good to hear though that doing a reinstall fixed your issue.
