BWO will never be able to live up to the hype
You provide the answer within the question.
That is at least my opinion. For those that actually waited since the years of yore it can seem as if it's just been in development for that long because it's so awesome and massive, while in fact much of the case is that it's been in hibernation for long stretches of time. On the off chance it meets your hype level, well, more power to you, I guess you had reasonable expectations.
Personally, I'm just hoping that you will find the campaign to be worth your time, and that it will entertain you for the duration, and perhaps leave you wanting more.
I'm hoping to make a final push sometime in 2010 once I get everything re-organized. We'll see how that will pan out.