What are some interesting plot ideas for 'Code Geass March of Time' fanfiction?

A plot could involve Suzaku traveling back in time after all the destruction in the original timeline. He realizes that his loyalty to Britannia might have been misplaced. So, he teams up with Lelouch from an earlier time and they work together to change the world for the better, using their combined skills and knowledge from different points in the timeline.

One idea could be an OC who is a commoner but has a unique power that gets noticed by Lelouch. For example, the ability to manipulate sound waves which could be used for both stealth and attack. Another could be an OC from a foreign nation who has different moral and cultural values than the Britannians and Japanese, creating interesting conflicts. Or an OC who is a brilliant scientist working on a secret project that could change the balance of power in the Code Geass world.

One idea could be the gamer having the power to manipulate the Code Geass world like a game. For example, they could level up their Geass power, unlocking new abilities. Another plot could involve the gamer character teaming up with Lelouch to outwit the Britannian forces using game - like strategies. Maybe they can see hidden stats of characters and use that knowledge to their advantage.

A really interesting plot could be a Code Geass character being turned into a vampire. This would completely change their dynamics. For example, if Lelouch became a vampire, he would have to deal with his new vampiric nature while still trying to carry out his plans for revolution. It could add a whole new layer of conflict and drama to the story.

Another idea is that a character from the Naruto universe is transported to the Code Geass world and gains the Geass power. He then uses his ninja skills along with the Geass to build a harem. He might use his Geass to make female characters fall in love with him, but then has to deal with the moral implications of it, all while trying to survive in this new and dangerous world.

One idea could be that Naruto somehow gets the Geass power. He might use it in his battles against the Akatsuki. For example, he could use it to make an Akatsuki member reveal their secrets or to stop them from using their jutsu for a short time.

A possible plot is the OC having a Geass that allows him to understand and communicate with all forms of life. This would make him very interesting to the different factions in Code Geass. The Britannian royalty might want to use him for political gain, while the resistance groups see him as a potential ally. Along the way, he forms a harem of characters from both sides who are drawn to his unique ability and kind heart.

One idea could be an OC who has the power to manipulate time in a limited way. They could use this power to try and prevent certain tragedies in the Code Geass world, like the fall of certain regions. Another plot could involve an OC who is a master strategist from a different universe and has to adapt their skills to the complex politics of Code Geass. A third idea might be an OC who can communicate with machines, which could lead to some really unique interactions with the mechs in the series.

One idea could be a crossover with 'Attack on Titan'. The mechs in Code Geass could be used in the fight against the Titans. Another idea is a crossover with 'Fate/Stay Night'. The mages and their magic in Fate could interact with the Geass powers in Code Geass. A third idea might be a crossover with 'Fullmetal Alchemist'. The concept of equivalent exchange could be explored in relation to the Geass power's consequences.

One idea could be a crossover where Naruto characters end up in the Code Geass world and have to deal with the political intrigue there. For example, Naruto might try to use his talk - no - jutsu on the Britannian royalty.