Initially, the base game dungeons where design to be a two-part story and we got that for some of them. However, we didn't get that for all of them. So, I would love to see new dungeons finishing off some of the incomplete stories.
Specially considering we are revisiting Coldharbor in this current "season", it really feels like such A WASTED OPPORTUNITY to not have a Vaults of Madness Part 2 as a Dungeon. It's clear that, yet again, Gasteau Chamrond wants to steal from the Mad Architect (RIP). Make Reynelle Derone the companion of the player as she regrets what she did while the player fights the other two.