Insert the protagonist who is kinda like Astral and Yusaku aka. loves trying out new things, is very energetic and friendly and is fascinated by a card game. I would love to see a female protagonist who is a mixture of Yuma and Jaden/Judai aka. Maybe they even have a moment when they talk about their past experiences and see they have more in common than they think.

I would love to see Yusaku having fun duelling for once by participating in an action duel and maybe he even remembers Ai's words to not be afraid to make friends, and recognizes Yuya as his friend. Maybe they even end up in a tag duel or something, and Yuya learns about Link summon and Yusaku learns about Pendulum summon. Other Yu-boys sense something in Yusaku like his Link sense or something, and Yuya being Yuya offers to help him out. Let's say he ends up in ARC V dimension and while he tries to find way back, he runs into Yuya. Maybe he will be reunited with Ai, but to get to him he will find himself in completely different dimension that VRAINS connected him to. So how could those three protagonists connect? In Bonds Beyond Time it is Yusei who travels to different times, so it will likely be Yusaku and it would make sense since VRAINS ended with him travelling to unknown part of network. He's been using solid vision to the point where his dragons materialized completely and in the end even En's couldn't destroy him – they simply split him in four in order to weaken him. Duel monsters were in fact alive and solid vision connected them with an actual world they came from and that's why Zarc became so unstoppable. Back in Original dimension, that's exactly what Leo Akaba has been researching and he even half-confirmed it when he found out that duel monsters created by solid vision project body heat. Due to the merge at the end, the world of ARC V is considered as a single world but there were also hints of other worlds still being present. ARC V went into details about dimensions and nicely incorporated an idea that all four dimensions used to be one and Yu-boys used to be the same person that split in four. ZEXAL went a step further and made it more believable with a use of science fiction: Earth, Astral World and Barian World are all considered worlds at different places in universe, accessible only by alien beings like Astrals and Barians.

Yugioh 5 series crossover movie