According to the spies, those that submitted bids include East End Capital, Westbrook Partners, Vornado Realty Trust, Tishman Speyer Properties, L&L Holding and Savanna.
Having worked in the industry, I'm taking this info with a large dose of salt. The only people who could know this are insiders. An agent that puts out info like this about his client is in for a major lawsuit. I highly doubt there is a Johnny the Bethelite who is privy to this. I suspect some broker is putting behind this in an effort to get a better deal for his client.