Yes, the Epic Day Pass with all resorts access includes matching bonus days that can be used at Wilmot, Mt. Brighton or Afton Alps.
For example: If you purchase the Epic 2-Day Pass with all access, you will also receive 2 total bonus days at the above resorts, which are available if you use your Epic Day Pass days at other resorts like Vail, Breckenridge or Park City. Restricted day access is the same for bonus days as for the access chosen on your Epic Day Pass purchase.
Bonus days are not included on Epic Day Pass with 22 or 32 access.