Overall, D Gray Man Hallow adheres pretty closely to the manga. Some scenes might be presented differently for better animation effects, but the core story remains intact.
One idea could be to have characters from 'D Gray - Man' interact with characters from another series in a post - apocalyptic setting. For example, they could team up to fight against a new type of Akuma that has emerged due to the crossover's unique circumstances.
First, you need to decide which other series or world you want to crossover with. Then, research both 'D Gray - Man Hallow' and the other one thoroughly. This includes understanding the characters, their powers, and the overall lore. After that, come up with a basic plot idea, like a common threat that forces the characters from both to interact.
Definitely. It should be a continuation. Since there are still so many loose ends in the original story, like the full story behind Allen's transformation and the ultimate fate of the Black Order. 'D Gray - Man Remaining Story' will most likely carry on the story to answer these questions.
The D'Gray Man manga has indeed finished. It wrapped up with a satisfying ending that tied up most of the plotlines and left a lasting impression on readers.
The D Gray Man manga concluded in 2022. Throughout its journey, it gained a loyal fan base and provided an engaging story. Its ending marked the conclusion of a significant chapter in the manga world.