If you need or want to buy or sell, there is little reason to wait. If you have the assistance of a trusted real estate and mortgage professional, you can most likely engineer a very good home purchase and sale. But that assistance is extremely important. Make certain you work well with your real estate advisors.
Remember, too that if you sell, your price may be lower than it would have been some months ago, but the purchase price for your next home will most likely be proportionately lower as well.