Boy, if only we had a crystal ball! Right now, this is the question on everyone's minds. From what research I've been able to do, we typically have roughly 10 years of growth, then 5 or so years of readjustment, then 10 years of growth again, etc., etc. But does the market have to behave that way exactly? No.
Some facts to consider right now: 1) Building permits are down. As the population increases, housing should also increase and keep up. When builders aren't building consistently, a "pent up" demand is created, a "shortage" occurs and prices skyrocket. 2) Rates are fabulous. Historic lows. 3) Property values have already declined substantially.
Only time will tell. Regardless of the timeframe of selling down the road, having your home in clean and well-kept condition (updating), priced fairly, will get it sold in any market. Good luck!