THEORY TIME!

I personally believed that it was the Fourth that was Naruto's father (hence many of the similarties) but that Naruto pretty much raised himself from an early enough age. Eventually I reckon that because the Forth was his father, like Tsunade who also was directly related to a hokage, Naruto's ' hokage lineage' will ensure his consideration for either the fifth or sixth hokage position toward the close of the series.

Just my two cents.