That won't happen plus if it did then their battle would go on for days or longer cause they'd probably be equally matched, even with the powers naruto and sasuke had before plus what he just gave them i reckon that the sage did something to make sure naruto is just as powerful as sasuke and sasuke is just as powerful as naruto besides they're meant to represent yin and yang and isn't yin and yang about balance meaning that in this case 1 can't be more powerful than the other otherwise the scales would tip either way,not only that but when they were younger naruto and sasuke were jealous of each other power,naruto wanted to be just as cool,just as powerful as sasuke,naruto got a lil stronger then sasuke got jealous cause naruto was more stonger than him and becuase of that sasuke sought power from orochimaru but now that the sage has come into the equation and gave them equal amounts of power etc there may be no need for them to be jealous of each other and then finally both naruto and sasuke would acknowledge each other as EQUALS!>