User blog comment:Swordweaver/Kaga's sister ship, Tosa/@comment-27111066-20160124032343

If i'm not mistaken the namesake of the class was Tosa, although Kaga being the first ship built kinda puts knife through that statement. although if they were to add Tosa I would assume they would put her in her own class. this is sort of a similar situation to the Mutsuki-Kisaragi, Mutsuki being the namesake although Kisaragi was completed first. In conclusion Tosa would be put in her own class seeing as though she was the planned namesake although neither of the ships in the class were actually built as a Tosa.