The 117th annual Real Estate Board of New York banquet at the Hilton New York Hotel last Thursday night was one of celebrating the accomplishments of the industry’s movers and shakers.

But for the first time in 12 years, this year’s gathering had a tone of muted concern surrounding the uncertainty of who will lead the city after Mayor Michael Bloomberg’s term comes to an end.

An advocate of skyline expansion, the Bloomberg administration has been a friend to the development community. But as the clock ticks down to December 31, the real estate community has plenty on its mind.