On my 2015 S, I see SOH readings everywhere from 92% up to 97%. The AHr reading tracks rather closely with it as well, where SOH is roughly round(AHr/62.44, 0.01)
My numbers:
http://www.mynissanleaf.com/viewtopic.php?f=9&t=20692&start=20#p445383
At least one other person with a 2015 has seen...