We were at Desire over Christmas and New Years a few years back. That year they had a "Celebrity" theme where you were expected to dress up as your favorite celebrity. Some did, and some didn't, but it didn't really matter - as for practically all Desire events, dressing to theme is an option.
The year we went, a month or two before New Years, the
Desire website posted a special notice about the New Years Eve theme which included information on how to reserve your dinner reservation at one of the restuarants.
We just checked the Desire website and all we could find is a
general event listingon the events calendar saying there'll be a party, but it doesn't really say very much.
Perhaps you'd find out more if you contacted Desire directly at the address listed at the bottom of the general event listing.