Stephen Fuller, an economist and faculty chair at George Mason University, comments regularly on the DC Metro economy. His latest report, "The Future of the Washington Metropolitan Area Economy", is at the same time upbeat and cautionary. The cautionary part is that we have a lot of work to do to "upgrade" infrastructure, but having done that, we have tremendous growth expectation...in the next 20 years, population to increase by 1.67 million and 1.58 million net new jobs.
This will require significant new housing possibilities...new construction and rehab. Georgetown is not likely to be the site of much of this, but the Georgetown real estate market will benefit from the added demand for housing wherever that demand is initially located.
See the full report at http://www.cra-gmu.org/forecasts.htm