I have an issue with the quests "Season Unending" and "Joining the Stormcloaks" preventing each other from progressing. I don't use the PC version, but I'm wondering if these kinds of existing quest glitches in my save file will be sorted out with Skyrim 1.4. I know that it depends on how the fix was made by the developers--they could just fix the possibility of it occurring (prevents new glitches only), or they could fix the conditional logic (parameters) that would pertain to any save file (fixes new and existing glitches).

Any insights?

Yeah, I also had bugs with the Thieves Guild questline, items left over from the Bards College quest, etc. Plus some of the companions were really broke (like Illia). Does the latest patch fix these issues?

I'm still having problems with a couple if thieves guild quests and companion quest. So don't get your hopes up.