I believe nnas will give the advisory reports for both RN & PN at the same time. It is quite possible that your education will be somewhat comparable or not comparable to Canadian RN entry to practice competencies, but may be comparable to Canadian PN entry to practice competencies. If you use the search tool in the right hand corner to find a thread entitled 'nnas experience' you will be able to read other iens nnas results.
Don't worry about studying for the CPNRE or NCLEX for now, just focus on getting your college/ university to send a nursing education syllabus that includes an outline and summary of the topics covered in each course including the objectives, learning outcomes hours of study like the example they gave in the NNAS video. For more examples of the type of syllabus NNAS wants, look at various Canadian BSN course outlines. If you look at British Columbia Institute of Technology (BCIT) nursing course outlines you will see detailed course descriptions, course learning outcomes/competencies, evaluation criteria.
Also ask your university to provide any information that gives details about RN entry to practice competencies. Does the a nursing student handbook, preceptor guide, student policy and procedure guide, contain information that gives the philosophy of the program, expected outcomes etc?
Become familiar with the Canadian entry to practice competency documents, you can find them on CNO search for 'Entry-to practice competencies for Ontario registered practical nurses' and 'Competencies for entry-level registered nurse practice'. The competencies are the framework for the nnas assessment, the IENCAP (RN competency assessment) an the CPNRE, do not underestimate the importance of the competencies being used to compare whether or not your education and experience is comparable to a Canadian nurses.