Synthesized answer
The provided passages do not contain information about what questions remain unanswered in the "Collected Works of Wang Yangming".
The passages only offer the title and author information for the book [Passage 1]. There is no content from the book itself that discusses unanswered questions.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: 王文成公全書, or, 王陽明先生全集 by Shouren Wang, Yangming Wang, Wencheng Wang