A Station Eight Fan Web Site
No. Not only is it meant to be a special treat for Gathering attendees (the main reason), but doing so would reduce the chance that Disney might actually opt to make the series.
The Director is the man who organized the Redemption Squad in the proposed "Bad Guys" spin-off. He is around 50 years old (though that age is subject to change), and is opposed to the Illuminati. The Director just looked like a man in a suit in the "Bad Guys" leica reel, and was voiced by William Devane.
Greg's answer: Illuminati. Sevarius would be in there. Matrix. Fang. The Director. Castaway. The Gargoyles. Falstaff. A bunch more...
The terrorist from "City of Stone" Part I would also appear, and her cause would have been revealed.
Sevarius would be involved somehow. Other than that, it has yet to be revealed.
GargWiki.net has answers for all your Gargoyles questions.
Includes episode commentaries by co-creator Greg Weisman, interviews with the cast, and a documentary on the fan convention.