It's possible. If there's not a significant economic downturn, interest rates are projected to increase. If that's the case, affordability at current prices will decline.
I would like to add that the economy today and economy 10-20 years ago to be different. The stock market has been reaching new highs constantly at the tune of 'over bought', 'correction' being due. Just today, another ALL TIME HIGH. The FEDs have pledged to keep rates low, but it's QE program has ended.
The primary driver in the past few years were due primarily to interest rates, economic stimulus and incentives by the government. But the concern now is if there is enough growth to continue. There could be a retrace, but what some of you folks should pay attention to are the economic figures from the housing industry. Permits, housing starts, existing home sales, Schiller Price index are all good economic indicators. Of course, all MMA (major market areas) have their own behavior. So you must understand that too! What the Feds are looking forward to and hoping for is that the economy will be keep inflation in a positive trend. With housing being a critical part of the economy, the Feds want to raise rates and see housing prices rise together!! Then again, you think about what raising rates will do to 'debt' and 'interest' for not just individuals but for the 'gov't!!!
What people do not understand and it may be conceivably hard to grasp, is that rates rise in a bullish environment.