At WBG, after Bud lends you Taurus, he will yell out every option you click on the menu screen. I also didn’t expect the voice acting when he unfreezes the wizard trapped in ice. I wonder if this is also completely new or they had it back in DS versions.
Each time you finish a major event, new dialogues are added to pretty much all NPCs in each map. For example, I’m now right about to confront Mu, and 95% of the NPCs (except the special characters) are talking about how special they are compared to others, and they should be the one joining Mu. I am really impressed by the developers’ effort in world building and making sure everything is consistent. And ngl I have been literally traveling to each map, talk to each NPC, just to find out how they have been impacted by the storyline.