Well, in this fanfiction, there might be new storylines created from the combination. For example, the different settings of the two worlds could merge, leading to exciting adventures. The characters might also learn new skills or behaviors from each other. Like Tom's attitude towards certain things could influence characters in Edd's world and vice versa.
In 'tomsworld meets eddsworld fanfiction', an interesting aspect could be how the humor of both worlds combines. Tom's world might have a darker or more sarcastic humor, while Edd's world has its own brand of zany and light - hearted humor. When these two types of humor meet, it could result in really funny and unique comedic situations. Also, the power dynamics between the characters from different worlds could be explored. Some characters might be more powerful in one world but not in the other, and how they deal with this change could be a fascinating part of the fanfiction.
Most likely, Tom from Tom's world and Edd from Edd's world would be main characters. They are the central figures in their respective worlds and would probably drive the story forward when the two worlds meet.
Maybe there's a competition between the two worlds. For example, a cooking competition where Edd and his friends from Eddsworld compete against the characters from Ellsworld. This would lead to a lot of humorous interactions and some creative cooking disasters.
In 'tfp meets tfa fanfiction', the technology differences can be a fascinating concept. TFP has a more gritty and realistic take on the Transformers' technology, while TFA has a more cartoony and sometimes out - there approach. Fanfictions might explore how the two groups of Transformers adapt to or are amazed by each other's tech, like the TFP Autobots being intrigued by the unique transformation abilities in TFA.
In Digimon meets Pokemon fanfiction, a cool concept might be the evolution differences. Since both have their own evolution systems, seeing how they interact or conflict could be fascinating. Like, what if a Digimon's evolution was affected by a Pokemon's presence? Or perhaps a Pokemon could gain some of the Digimon's digital traits during evolution in this crossover scenario.
One interesting concept could be the exploration of Link's self - discovery. Meeting himself might lead to a reevaluation of his own identity, values, and purpose. For example, he could compare his past experiences with his current self and gain new insights.
One interesting concept could be the unique power combinations. For example, Mario's jumping abilities combined with Sonic's speed could lead to some really cool adventure scenarios. Maybe they could team up to defeat a common enemy that neither could handle alone.
In 'pokemon meets mlp fanfiction', a cool concept might be the trading of skills. Maybe a Pikachu could teach an electric - based spell to a unicorn pony, or a pegasus pony could show a flying - type Pokemon some new aerial maneuvers. This cross - over of abilities can create really engaging storylines.
One interesting concept could be the combination of the Halo's Spartans with the Jedi or Sith in Star Wars. Imagine a Spartan with the Force abilities. Another concept might be the Covenant and the Empire teaming up, which would create a really powerful and menacing alliance. And also, the idea of Halo's advanced technology like the Forerunner tech interacting with Star Wars' unique galactic technology is fascinating.
In 'Star Wars meets Earth' fanfiction, a great concept is the cultural exchange. The Jedi Code and its principles could be compared and contrasted with Earth's moral and ethical beliefs. Also, the idea of Sith Lords trying to take over Earth is quite fascinating. It would lead to epic battles between the Sith's dark side powers and Earth's defenders, whether they be military forces or super - heroes.
The fanfiction could also focus on the character development of Gray. Meeting his counterpart from another world might make him question his own identity and purpose. This could lead to him growing in new ways, perhaps becoming more confident or learning new magic techniques from the Edolas Gray.