Baltimore's skyline is about to change in the wake of the merger between BB&T Corp. and SunTrust Banks Inc. Both banks have neon monikers atop some of the city's tallest buildings and the deal announced last week specifies a new identity for the megabank is coming. "They are not sure what the name is," said Antony Gross, senior vice president for JLL and a local expert on the office market. "From a landscape standpoint, one of the two names is going to disappear or both." The $66 billion merger unveiled last Thursday between BB&T (NYSE: BBT) and SunTrust (NYSE: STI) will make it the region's third largest bank with about $442 billion in assets.