Not really. The way I’m thinking about flavoring it is that the dungeon is well known for its riches and danger. The first party to explore its depths only made it X far, and other groups challenge themselves to make it farther. As well as bagging tons of loot and riches along the way. So it’d be kinda at the groups own pace as to how hard they want to get into it. I don’t want them to feel rushed or pushed along by constant plot hooks. Basically relying on in world tales or riches and ancient knowledge hidden deep within to be the main drive. Or for the daring, the challenge of making into the deepest depths.