The vast majority of NP programs are still at the Master's level -- you complete an MSN program that offers a nurse practitioner concentration (major). It's not a "versus" issue. The national certification exams for all
the advanced practice roles require an MSN to be eligible to write the exam.
The DNP (Doctor of Nursing Practice) is a very new degree that is being added on to the pile of "clinical" or "practice" doctoral degrees (non-PhD) in nursing that are already out there. There are a number of older threads on this site that discuss some of the pros and cons of this issue in detail, if you are interested.
The DNP degree is available to you as an option (at a v. few schools), if you want to pursue one. The proposal
to make it the minimum entry level for nurse practitioners is, so far, just that -- a proposal
, nothing more. A few of the professional organizations are circulating some position papers. Keep in mind that this is the same occupational group that has been debating making the BSN the entry level for generalist RN practice for some 30 years or so, and that
ain't happened yet, so ...