It's possible that there could be a new Bleach manga in the future, but as of now, there's no concrete information or confirmation. Maybe if there's enough demand from fans or the creator has new ideas, it could happen.
Well, there's no definite information yet. Usually, it depends on the popularity and commercial viability. Sometimes, publishers might decide to bring out new content based on fan requests and potential sales.
It's quite possible. New characters could add new dynamics to the story. They might be allies or foes of the existing characters, bringing new plotlines.
Honestly, I don't have the latest info on the name of the new Bleach manga. But usually, you can find out by following official manga announcements or fan communities dedicated to Bleach.
A new character could be a rogue Soul Reaper. This character has his own set of beliefs about how the Soul Society should be run and is constantly causing trouble for the Gotei 13. He might have a unique power that allows him to manipulate souls in ways that others can't. His role would be to be a constant thorn in the side of the established order, forcing the main characters to question the Soul Society's rules.