And I expect Larian to continue working on functionally broken areas of the game as they said they would. But they've explicitly stated that after this patch and the photo mode they plan to implement in the future they are focusing on bug fixes. There will be no new substantial content.
Could you point me towards where you’ve seen this explicit confirmation that there won’t be dialogue/narrative changes in any way beyond Patch 7? So far as I can tell, their explanations on the situation have been pretty vague, and they’ve only really said was “no new story content for the characters” which I just interpreted to once again be referring to the fact that we won’t be getting any dlc.
Sure. It was said by Swen in an interview and then reiterated in a community update:
"Being given the chance to develop a game set in the Dungeons & Dragons universe has been a dream come true for all of us. But as Swen recently confirmed, we won't be introducing any major new narrative content to the story of Baldur's Gate 3 or its origin characters and companions"
If they hadn't handed over the rights to the companions this statement wouldn't necessarily rule out some minor dialogue changes, but I think the fact that the only companion dialogue changes they've confirmed for patch 7 is dialogue they recorded before the decision to hand over the characters to wotc is a sign this won't be happening. The reactivity for the durge scene they mentioned was said to be via narrator lines as well.
Also, shortly after Swen announced they were moving on from BG3 Astarion's main writer announced that he would no longer be working with Larian. Another indication that they're done with new dialogue imo.