I had my Prius in for a recall last week there was an older guy with the same gen as your car in for his 240k mile service.
The tech told him that all they had to do was replace the spark plugs and a few other minor things and said it should be good for another 100k without any issues.
I spoke briefly with him afterwards and he said that generation you own was built so robustly it can literally go forever. Time will tell if the 2016 has the same longevity.
Sweeet im only at 130k so far!