I really like Lonzo as a secondary ball handler for Detroit to take some of those responsibilities off of Cade's plate. I think he's a pretty big upgrade on THJ defensively as well.
Lonzo has been playing more minutes as of late too, so I think he could potentially fetch a decent return from a team who would be interested in resigning him. Pistons could offer him their MLE next year and I think Lonzo would accept.