One possible plot twist could be that a previously underestimated ninja reveals extraordinary skills during the Jounin exams. For example, a shy and quiet character who has been in the background suddenly shows mastery over a rare and powerful jutsu. This would change the dynamics of the competition as other competitors would have to re - evaluate their strategies.
Iruka could be an unexpected character to shine. He's often seen as more of a teacher figure, but in a fanfic, he could enter the Jounin exams. His knowledge of the students and his own ninja skills, which might be underestimated, could give him an edge. He could surprise everyone by using creative teaching - inspired tactics in the battles.
Maybe he would have mastered some new wind - style jutsus. For example, he could create more complex and powerful wind blades that can cut through even stronger defenses. Since he is at the Jounin level, his chakra control would be much more refined, enabling him to perform these advanced techniques.
Kakashi could still be an important ally even though Naruto has become a Jounin. Kakashi has a wealth of experience and knowledge that Naruto could still learn from. He could offer advice and assistance when Naruto faces tough challenges in his new role.
Well, Asuma is also a character that shows up a lot in these fanfics. His relationship with his students and his smoking habit give fanfic writers a lot to work with. And then there's Kurenai. Her genjutsu skills and her role as a female jounin can add unique elements to the stories. There are also some original characters created by fanfic authors that sometimes become popular within the 'naruto jounin fanfic' community.
In this kind of fanfic, one interesting storyline could be Naruto facing new and more powerful enemies as a Jounin. He might have to use his unique skills in more strategic ways. For example, his shadow clone jutsu could be used to deceive opponents on a much larger scale.
One interesting plot could be a jounin who has a secret mission to infiltrate an enemy village. He has to use his unique jutsu and skills to avoid detection. Another plot might involve a jounin training a group of genin in a very unorthodox way that challenges the traditional shinobi training methods.
One common theme is self - discovery. Since backup jounins are often in the background, these fanfics usually explore how they find their own strength and purpose. Another theme is loyalty. They have to show loyalty to their village and comrades even when they are not in the spotlight.
Yes, in some fanfictions Naruto can be depicted as a Jounin. Fanfiction allows for creative interpretations of the Naruto universe, and it's not uncommon for writers to accelerate Naruto's growth and have him reach the Jounin rank earlier than in the original series.