here are the 12 episodes from the official press release:
STAR TREK: THE RODDENBERRY VAULT includes 12 classic Star Trek episodes in high-definition Blu-ray chosen for their relevance to the Vault’s lost/unseen material:
· The Corbomite Maneuver
· Arena
· Space Seed
· This Side of Paradise
· The Devil in the Dark
· The City on the Edge of Forever
· Operation: Annihilate!
· Metamorphosis
· Who Mourns for Adonais?
· Mirror, Mirror
· The Trouble With Tribbles
· Return to Tomorrow