I had a very intriguing thought regarding the cover, As it was explained by a respected user on the chapter discussion thread Sakura's weapon is a support weapon, as compared to Naruto using full samurai swords, could it be since (according to research Samurai's wives used this and protected the home) Sakura travels back to Konoha when a message is sent it is under attack (most likely, its oro afterall) and Sakura goes to help mount a defensive there, it wuld totally tie in everything, from the picture to the symbolization
So I was re reading that chapter and I noticed Madara calls Hinata a "Missus", many NH fnas are saying this a another sign, like Kiba's remark when the konoha 11 got the the field.