[...] I am concerned about developers adding new features, new classes, and voice overs just 2 weeks before the game's release date.
Concerning the new specializations, even if they announced it recently, they were already working on it way before. I bet they had the rough ideas during pre-prod but only waited the kickstater stretch goal (maybe only checked the ) to really dedicate resources (especially since one of the spec is pretty early in the strech goal).
On the sound topic, the dialogues and audio barks are typically added as one of the last thing in any game because you don't want to re hire the actor multiple times as the story or dialogue are being modified, tweaked, improved etc.
So I would not be too concerned about that.
