One idea could be a crossover where Naruto meets Barbatos in a strange dimension. Naruto could be intrigued by Barbatos' powers and they could team up to fight a common enemy. Maybe a powerful demon that threatens both their worlds.
It could start with Naruto being mysteriously summoned to a strange world where he sees the Gundam Barbatos for the first time. He's confused but quickly realizes the power of this huge machine.
It could be a really cool story where Naruto's ninja skills are combined with the power of Gundam Barbatos. Maybe Naruto could use his chakra to enhance the Gundam's abilities, like making its attacks faster or stronger. For example, he could infuse his Rasengan with the Gundam's weapon systems.
Start with a strong premise. For example, a prophecy that only Naruto and Barbatos together can fulfill. Then build up the conflict, like having an evil force trying to stop them from achieving the prophecy. This will keep the readers engaged.
As of now, the Genshin manga is not finished. The story is still evolving and there's more to come for fans to enjoy. The creators are taking their time to develop a rich and engaging narrative.
There's no definite answer yet. It might continue if there's enough demand and the creative team has more story to tell. But it could also stop if they feel they've completed the story arc.