I'll pop you two on admin staff to help me out because I trust you both.
Thanks for the offer, but I'm not even qualified to be a member there, much less an admin. But I'd be happy to help in any way possible. If you don't mind me asking, what's your strategy for promotion? I'll tell you this - no one wants to join an empty board. Seeing as there are a lot of members here and the fact that not many of us have read the series, I'd suggest putting up general areas where we can post about things other than the series just to get the post counts up.
If they made a movie of the series, that would certainly help too. I'll gladly watch a movie. But if I have to sit down and read a novel, sorry but I don't have time for that at the moment. I'm afraid that the only reason this board did so well is the overwhelming popularity of LBT and the fact that LBT is movie based, not book based. I'm not trying to rain on your parade. I'm just trying to give an objective overview of the situation.
Seeing the limited competition of your niche, I'm sure this new board could raise to the top of Google in no time with a little bit of cash (PM me for more details on that, as I'd hate to give away my methods publicly).The total cost would probably be less than $100 to get to be the first result on the first page of Google. Of course this is only because of the limited competition of your niche. The problem is the amount of people who have read the series and would be interested in joining a message board about it.