Personally, I think it is almost canon, but I wouldn't feel confortable with it. Here is Why: Sarada wouldn't add anything to the history and legacy of Konoha being the first "Uchiha" Hokage. I mean, she doesn't know much about the meaning and burden of what meant to be one, and doesn't seem to be interested in any of this (when Sasuke was at her age, he did the impossible to honor and follow his clan's legacy)... If Kishi doesn't mend this,I will be severely dissapointed.
But, that's just me...What about you?
But, that's just me...What about you?