Board Thread:Naruto News/@comment-26408596-20150503091622/@comment-2078390-20150514135926

It could also be nothing more than a family crest instead of a clan crest or just something Kishimoto decided to give Sakura so it wouldn't look like he was merely favouring Naruto and Sasuke?

Don't forget Mebuki isn't a ninja but Hizaki is a Genin albeit he didn't really make it as a ninja and became a merchant instead. A clan is a huge number of individuals with a common ancestor, land, titles and wealth, while a family is a very small number of individuals with not as much. I should know I have a family crest myself that goes back 4-5 centuries.

Until Kishimoto confirms vaguely rather than us speculate it we should leave it as is. This isn't like Hinata's and Sakura's love where it was plain as day but people speculated otherwise.