I would love to see Lower Decks give us a glimpse into how Neelix lives "15 years later". Feels like he's gotta be high rolling and connected to (and owed favors from) everyone in every quadrant, by now.
I want to see Neelix paired with Quark. I can't decide if they would hate each other, or create the greatest empire that ever was. They should at least be a rival to the Bashir/Garak duo.