ahhhhhhh c'mon guys, I just got the campaign for Christmas and your all telling me its bad? That's disappointing.
Without reading it yet, I had in mind of having the PC discover that Neverember also put some the lost crown of Neverwinter's Alagondar bloodline in the vault, sparking another quest after the vault when both Neverember goons (who now remembers that the crown is in there) and the Sons of Alagondar (who are still active in my FR) try to get their hands on the crown for their own agenda.
View it as a recipe that's got a lot of great ingredients but is organized in a very confusing way and if cooked as instructed could lead into an unappetizing mess, but if some work and creativity is applied into it, could result in a fantastic meal. The amount of work is up to you, but some of the suggestions given should help you out.