In Dragon Ball Super Super Saiyan 4 fanfiction, often there are concepts about alternate universes. Picture a universe where Super Saiyan 4 is the norm rather than an extreme form. This could lead to different power hierarchies and battles. Additionally, some fanfictions explore the idea of Saiyan - human hybrids achieving Super Saiyan 4 in unique ways, perhaps with abilities that are a blend of human ingenuity and Saiyan strength.
One interesting concept could be new forms for the characters. For example, a fanfic might introduce a super - powered form for Goku that combines the best aspects of his previous forms in a unique way. Another concept could be alternate universes where the power dynamics are completely different. Maybe in one fanfic universe, Vegeta is the main hero instead of Goku. Also, there could be new villains with abilities that challenge the Z - fighters in ways we haven't seen in the official series.
One interesting concept could be the fusion of the Semblances from RWBY and the Ki powers in Dragon Ball Super. For example, a character might combine their unique Semblance with Ki manipulation to create a new and powerful ability. Another concept could be the crossover of the different universes. Characters from RWBY might visit the Dragon Ball Super universe and have to adapt to its rules and power levels. It could also be interesting to see how the different character personalities interact. The cocky and confident characters from Dragon Ball Super might clash or form unexpected alliances with the more diverse personalities in RWBY.
One interesting concept could be the different power levels and transformations that characters might have in the multiverse. For example, a fanfiction might explore a version of Goku where he has an entirely new form that combines the powers of different Saiyan lineages from various universes. Another concept could be the crossovers between characters from different universes within the Dragon Ball multiverse. This could lead to unique battles and alliances.
Some fanfictions might explore the idea of the Doom demons invading the Dragon Ball Super universe. This would lead to an epic clash as the Z - Fighters, with their various super forms and techniques, take on the hordes of demons. The Saiyans could be especially interesting in this scenario, as they might relish the challenge of fighting such powerful and malevolent foes.
A Super Saiyan in Naruto fanfiction could be a result of a dimensional rift. Maybe a portal opens between the Naruto and Dragon Ball universes and some Saiyan energy seeps through, affecting a Naruto character. This would be an interesting plot device as it would introduce an alien concept to the ninja world.
Goku is often very popular. Since he's the main character in the Dragon Ball series, many fanfictions focus on his journey with the Super Saiyan 4 form. Vegeta is also a top pick. His rivalry with Goku and his own Saiyan pride make for great stories in the Super Saiyan 4 context. Another popular character could be Gogeta, the fusion of Goku and Vegeta. His Super Saiyan 4 form in fanfiction can be extremely powerful and is often used to face off against the toughest of foes.
Some concepts in RWBY Super Saiyan fanfiction include the exploration of new character relationships. If a character becomes a super saiyan, how does that affect their bond with their teammates? For example, if Jaune were to achieve super saiyan status, would his leadership role change? Also, the fanfiction could explore the origin of the super saiyan power in the RWBY universe. Is it a genetic mutation like semblances or something entirely different? It could be that a powerful relic gives a character the ability to transform into a super saiyan, opening up a whole new storyline.
One idea could be a story where the Saiyan Blue form has an unexpected side effect. For example, it could start to drain the user's life force slowly but surely. Goku discovers this during a battle and has to find a way to either control it or reverse the effect while still fighting powerful foes.
Well, a common concept is the crossover of characters' abilities. In some fanfictions, you might see Goku using Shadow Clone Jutsu to outnumber his opponents, just like Naruto does. Or Naruto might learn to sense ki instead of chakra. It's also interesting when the story explores the cultural differences between the two series. The shinobi way in Naruto and the Saiyan's warrior pride in Dragon Ball Super can create some great character - development moments when the characters interact. And, of course, there are always the epic battles that result from mixing such powerful characters and abilities.
Well, one interesting concept could be new power - up forms for the characters. For example, a fanfic might introduce a unique form for Cell that combines the abilities of different Saiyans in a completely unexpected way. Another concept could be alternate timelines where Cell has different fates. Maybe in one timeline, he becomes a hero instead of a villain. And also, there could be concepts about Cell's family or origin that are explored more deeply, like his creator having some secret motives that are not shown in the original series.