Honestly, the meaning of 'Saab story' is kind of ambiguous. It could potentially be a fictional tale featuring Saab elements, or it could be a real-life story associated with Saab in some way. Without further clarification, it's difficult to give a precise meaning.
I'm sorry, I haven't read the specific 'Singh Saab The Great' story in detail. But generally, it might be about a character named Singh Saab who has some great adventures, overcomes challenges, and shows remarkable qualities in the story.
No. Harry Potter is a completely independent and original fictional universe created by J.K. Rowling. It has its own unique storylines, characters, magic systems, and world - building elements that have no relation to a 'Draken fanfiction'. The Harry Potter series is about a young wizard's journey through Hogwarts School of Witchcraft and Wizardry, facing dark magic and growing up, which is very different from what a fanfiction would be.
As of the current chapters, Draken is still alive. The storylines haven't led to his death. The character has played an important role and continues to be part of the ongoing narrative.