Same. I wouldn't be surprised if the first major patch mostly consists of bug fixes and implementing features that weren't quite ready for the original EA release.
If there will be actual system changes or reworks I expect them to come at a later date.
They've done some bug-fixing patches already. While fixing bugs is important, people are impatient and want balance changes. It's been a month and a half without even any acknowledgement from Larian about the game balance issues.
You've got that dead wrong about system changes and reworks. The time for major changes is NOW, because that gives more time to tweak and adjust them. A year is not a long time in game development, and the more time passes, the less Larian will be interested in making changes at all, because they'll have spent more time developing based on the old balance and need to tweak many things again.