I'd welcome reading a prequel involving Sigrid and the Majestic crew because I enjoyed the original tale, but as the [b]Count[b/] says their inescapable demise in the far future swings both ways.
On the one hand it lends a certain grim fascination and inevitability to the story, but it also adds a pointlessness to whatever adventure you chose to depict since ultimately no one is getting out alive.