No one can answer that question, as the economy is a mystery, even to economist. Look at the pre crash high prices and current prices. Divide that difference by the years that pass and you have the average appreciation/depreciation per year. Keep adding that yearly increase/decrease, until you get to pre crash price.
Condos used to appreciate 10% per year on average in Chicago and there for double in price ever 10 years. This is no longer the general rule, but you can use it as a guideline.