In general, updated flood levels will increase, i.e., more properties are likely to be in the updated floodplain. When new maps are issued, your risk may have changed along with your flood insurance requirements. Property owners are encouraged to review the updated maps and discuss implications with their insurance agent. If you've been mapped into a high-risk area, you will be required to purchase flood insurance if your mortgage is through a federally regulated or insured lender. It is possible to save money through a process known as grandfathering provided by the NFIP.
If your property is mapped out of a high-risk area, your flood insurance costs will likely decrease.