As Paperchamp has pointed out, they are tagged with GOTY/Royal Edition. OG has said this same thing, however OG has said that he's reading it mainly as being "level" and/or "environment" based with the party, though OG has also said that he's also got cutscene dialogue sorted out as well as earlier content.
So it could be an in-engine cutscene and/or event, or it could be a gameplay based event, but the bottom-line is he's said repeatedly he's not entirely certain beyond there's some sort of conversation events going on from what he's told me. Didn't see any references for textures or videos called, so I'm not sure what's going on beyond that.
He did, however state that there does seem to be more ad-lib chatter, but that some of it seems to match up with Pocket Edition content which has added to being uncertain as to whether or not particular additional dialogue will be in the game or not following this update.
One of the ones he showed the text for was funny to me, a couple of NPCs talking about both Luna and Ravus. Apparently they don't like Ravus' personality, but think he's hot.
He did say he was going to look again in the demo and the like as it is, so he can probably narrow things down in a couple of days, as apparently some of the other things he's noticed are not actually tagged as GOTY. Such as something caught his attention with Aranea, so I know he got sidetracked with looking for the Glauca references for me because of that too.
