What we can see in EA are mechanical changes but I doubt if there will be more. Of course, they can throw us some new location or companion, but I doubt it because they will certainly want to leave as much as possible for the premiere.
The patches are marketing events. They want it to result in more youtube and twitch channel coverage, which results in more sales. It's in their interest to add in things that will draw more attention.
Obviously, they don't want to show their entire hand before the full release, but it's reasonable to think we might see an extra location or level five.
I'd really love to see new races, specifically, the half-orc and dragonborn. Some folks say they're waiting on full release to showcase those, but I suspect it has more to do with getting the models working properly with the gear and such. Also, I want more clothing options and cloaks and belts and so on.
Personally, I'm excited regardless.
They have long announced that the races will not appear until the premiere.
