I do not pretend to know how this will all play out. When I first heard of it a few years ago, I had pretty strong doubts that significant changes would be made very quickly. However, I have been surprised by the changes that have occurred in the past 2 or 3 years and it gives me reason to think that maybe this proposal has "more legs" than might at first be apparent.
The people who proposed the switch from MSN to DNP are/were the educators. They control the types of programs that are available to new people seeking education as an NP. I see a lot of DNP programs starting up and MSN, NP programs being closed. If the educators form a concensus and switch their programs from MSN to DNP, then those will be the only programs available. The other nursing groups (existing NP's, Boards of Nursing, etc.) don't need to be involved in that decision. If the predominant type of program available is the DNP, then that's what the majority of new NP's will get. (Though I suspect there will be MSN, NP programs that will exist for some time. Not every school will convert.)
So ... the key thing to watch in this process is the number of MSN, NP schools
that convert to DNP ... and the number who don't.