Unfortunately you must be Horde to see this egg unless you wish to raid the undercity as Alliance.

Inside the bank the four bankers are called Ophelia, William, Randolf and Mortimer all with the surname Montague. At first I thought it would be a Shakespear reference with Ophelia and Montague, but then it twigged when i saw the others.

Randolf and Mortimer were the big shot banking brothers in the 1983 hit Trading Places and Ophelia was the female character in it played by Jamie Lee Curtis. William I'm not too sure on. The only reference I can think of is Eddie Murphy's character Billy Ray, with Billy being short for William.