Thanks for sharing as usual!
So nightclub it is. Keeping aside the age issue for just a moment, which already made us discard this hypothesis, here is another thought.
**What if** it is, once again, another red herring? Some of you have already commented on the fact that, from a technical point of view, it's a very challenging scene to make because of the number of characters and so on. I had a similar reaction seeing the teaser as in "Oh, that's why the progress was so slow..." It almost immediately reminded me of Sam's concert, which had the same kind of challenges at the time, but ended up being a fairly minor part of Sam's event (in terms of "action").
So I wouldn't be surprised if the "main action" doesn't take place here, but later, e.g. once at home again. This nightclub scene could maybe serve to "prepare" for the main event, either by loosening up Sophia and/or playing again with the nostalgia for the younger years, or by making again Dylan the hero that saves her from some molesters, or simply by making them even closer with the dancing. And, of course, the whole nightclub thing, **could** be "just" another chance for L&P for experimenting with large scenes, complex lighting and pushing the limits of his hardware. It would not be so (completely) out of character for him IMO.