I think that the increased school time will create a shortage in certain areas (rural mainly). Though areas near CRNA programs will become more normal (not flooded with CRNA's). Roght now many cities close to programs are flooded with CRNA's with many graduates having to move or wait a long time for a job. My hospital stopped taking students becuase of the over abundance. Though if your willing to move there are many areas that are still underserved. The demand fluctuates over time, as with any profession. Many programs will be 4 to 8 months longer for the DNP (roughly three years or more total).
I think the biggest changes in practice will come from the health care changes. Medicare/Medicaid are making standards that allow them not to pay anything if complications arise. They claim this is to promote quality, but some complications occur regardless of level of care (giving them the oppurtunity to deny payment for some complications that could not be prevented). Though I think CRNA's will be at the top of changes (no matter how much pay goes down, we will still be on the top as far as income.)
I know of many programs that have or will have a DNP in anesthesia within the next couple of years. It looks like that most schools
will offer just the DNP well before 2025, as soon as all schools offer it then it will become the standard to enter practice.