Jokic idolized Duncan and has on a few occasions referenced his respect for Duncan playing with one organization his entire career. He'll retire a Nugget like Timmy did as a Spur. You can pretty much book it if you take these guys statements at face value.
I think Porzingas is in a similar vein being European and not having roots to any one part of the US. Unlike neph who grew up near two NBA teams. Only issue with Porzingas is he might have gotten a taste of the big time being drafted by NY and getting the love he got there before his injury.