I got a call into Disney event planning, They returned the call today but I didn't get a chance to call them back. Should know more tomorrow.
Okay so The one you can book on the web site is not going to happen. I woke up at 7 am to book for the day they released the 17th and it was "full" according to them. I am waiting for a call from special events to see how much it will cost to setup a private event.
I have read that even though the web site shows the dates are available, booking really doesn't open till closer to your date. Here is a link to a discussion regarding tomorrow land terrace dessert party. I imagine illuminations is similar. http://www.disboards.com/showpost.php?p=51184893&postcount=2073
@ExploringWDW you are right .... They opened it up on the web sites but no bookings yet. They haven't released the dates on the internal system.
Got off the phone with Disney, this is very doable have a couple of different locations in mind. News to follow. I need to get a head count of the amount of people wanting to go, please message me and let me know if you and whoever else is coming with you will be attending. This will help me figure out pricing, the more we have the less it will be Per person.