A plot could involve an ancient evil that was sealed away in both the Naruto and Asura's Wrath universes. The seal is weakening and Naruto and the Asura's Wrath characters must combine their strength and wisdom. They might have to overcome differences in their beliefs and cultures first, which would add a lot of character development and interesting interactions.
One idea could be a crossover where Naruto and the characters from Asura's Wrath team up to face a new, powerful enemy that threatens both their worlds. For example, a dark force that can manipulate time and space, forcing them to use their unique abilities in unexpected ways.
One way to blend the worlds is through the concept of power. Asura Wrath has incredibly powerful and god - like beings. In a fanfic, you could have Naruto characters encounter these powerful entities. For example, Naruto himself could meet Asura and learn about a different kind of chakra or power source. This would not only introduce a new element to the Naruto world but also create an interesting dynamic as Naruto's ideology of never giving up might be put to the test against the seemingly invincible Asura.
A really interesting crossover idea could be a tournament - style story. Characters from both Asura Wrath and Naruto universes are gathered to compete in a tournament. This would allow for all kinds of match - ups. For example, Rock Lee's taijutsu skills against an Asura Wrath character who is also a melee combat expert. It would be exciting to see who would win and how they would adapt their fighting styles.
One possible plot could be that Asura finds himself in the Street Fighter universe due to some mysterious rift. He then gets involved in the various battles and rivalries. Maybe he initially clashes with Ryu, thinking he is a threat, but later they realize they have a common enemy that is causing chaos in both their worlds.
Perhaps in the crossover fanfiction, the dark energy in the Mass Effect universe has some strange effect on Asura. It either amplifies his wrath to uncontrollable levels or gives him new powers. Meanwhile, the Asari, with their biotic abilities, try to form a connection with Asura to understand his nature. This connection could lead to a mutual understanding between Asura and the Mass Effect races, and together they work towards a common goal, like saving a planet that is on the verge of destruction due to a combination of Mass Effect threats and something related to Asura's past.
One idea could be exploring how Naruto's Asura reincarnation affects his relationships differently. For example, his bond with Sasuke might take on a new spiritual dimension. Maybe he starts having visions of past Asura incarnations' relationships and uses that knowledge to better understand his friends and foes.
One idea could be exploring how the reincarnation affects Naruto's relationships differently. Maybe his bond with Sasuke takes on a new dimension as they are linked in a more profound way through the Asura reincarnation. Another could be Naruto having to deal with new powers that come with the reincarnation and struggling to control them at first.
A possible plot could be that there is a cult that worships Asura and they believe Naruto is the key to bringing back Asura in his full form. They try to manipulate Naruto into doing their bidding. Naruto has to figure out their true intentions while also dealing with the fact that he might actually have the power to bring Asura back. This creates a moral dilemma for him as he doesn't know if bringing Asura back is a good or bad thing for the ninja world.
Well, perhaps a plot where Asura and Indra are given a chance to rewrite their history. They start to understand each other's viewpoints better and try to create a new future for the ninja world. They could also meet their descendants, like Naruto and Sasuke, in a different dimension and exchange knowledge and power.
Well, one possible interesting plot point could be the combination of Asura's rage - driven powers with the unique fighting styles and energy blasts from DBZ. Maybe there are epic battles where Asura's brute strength meets the ki - based attacks of DBZ characters.
One popular theme is the crossover with other action - based video games. For example, a crossover with God of War could be interesting as both have powerful and somewhat angry protagonists. The clash of their worlds and fighting styles would make for an exciting story.