Good question. And the answer, amazingly, is that yes, more can happen.
More can always happen in Las Vegas. More always does happen in Las Vegas (whether the fact that it does happen stays here or not).
For example, the Stratosphere deal includes 17 acres of land that surrounds the tower, which the buyer, Goldman Sachs, is already making noises about developing in some form or other.
There's also the old Wet 'n' Wild property, 28 acres, just sitting there, begging for a London-, San Francisco-, Lagos-, or Tecucigalpa-themed megaresort.
The Sahara, which has just been sold to a young hip L.A. nightclub mogul, Sam Nazarian, could easily be razed and rebuilt; it also comes with a big vacant lot to the east, across Paradise.
And after spending nearly $600 million putting together a 100-acre contiguous parcel from Circus Circus to Sahara Avenue, MGM Grand is no doubt planning something huge for that site, which is 33% bigger than Project CityCenter.
Soon, there won't be any north, central, and south Strip; it'll just be one long stretch of giant casino property after giant casino property, with no break in between. Oh, and did we mention that Project Neon Lights (see QoD 11/05/06) is still on the drawing board for a 77-acre area north of the Stratosphere. Connect that to the burgeoning Arts District and what'll you have? The Strip will actually reach all the way to downtown.