There some that have reached 100K miles with 12 bars.
https://www.mynissanleaf.com/viewtopic.php?p=551301#p551301
https://mynissanleaf.com/viewtopic.php?p=574260#p574260
I may not get to find out if I can make it to 100k with 12 bars. Dealer has made me an offer on a lease for a 2020 that I may not be able to refuse. Bittersweet....