You'll definitely know within a day, at most a week, how fucked it is. The only kind of bug I can think of that may take so long to come out is if there's a save bug that wipes saves. Which is more of a concern on console.
It'll almost certainly be moddable, but the only mod I'll have on my first playthrough will be the unofficial patch. Maybe a UI overhaul if it's as console-centric as vanilla Skyrim.