The CCNP Wireless Exam Revisions document will provide you with a summary of the updates that have been made to the new version of each exam.Through September 21, 2016, candidates can choose to take either the existing exams or the new exams or any combination of them both.
Effective September 22, 2016, if a candidates is still in process of attaining their CCNP Wireless certification, any existing exam they have passed will have earned them full credit towards the corresponding new exam as indicated in the chart below. Candidates will be required to complete their certification using the new exams.A CCNP Wireless Migration Tool is available to assist students with the transition to the new exams.
https://learningnetwork.cisco.com/resources/statics/1212539/ccnp-wireless-diagram2.png
References:
https://learningnetwork.cisco.com/docs/DOC-30049