Board Thread:Boruto Discussions/@comment-33156423-20171225014510/@comment-28044177-20171225035008

The noble clans are the Aburame, Akimichi, Hyūga, and formerly Uchiha. And we've had three of those clans represented in the graduates. But again, it's not unimaginable to have some clans not represented in a graduating class. Not everyone is going to have kids of the same age, and not everyone is going to graduate in the same year.