Full details are now out for Wings (1927), the first-ever winner of the Academy Award for best picture.

Regarding bonus features, according to Paramount there will be three on the Blu-Ray and one on the standard release:

• Wings: Grandeur in the Sky
• Restoring the Power and Beauty of Wings (Blu-Ray Only)
• Dogfight! (Blu-Ray Only)

They are likely featurettes and not documentaries.