Improvements before more game, we need a super strong foundation, and right now the foundation of this game has big big BIG cracks in it. Many mechanics are lacking or broken and need tweaking or fixing.
Just adding content may make it harder to fix those issues.
Agreed.
Another complication: If Larian is still planning to lock our companion choices before moving to Act 2, and I haven't heard otherwise, then we haven't seen all the companions yet. Maybe 2-3 more coming? We need to stay in Act 1 for EA testing of the remaining companions.