The Amazon UK listing now has more information available as to what makes up the forthcoming 27-disc 4K UHD ‘Skywalker Saga’ box set release:-

Unfortunately, the term ‘And much more…’ is used for every description of the each disc too…

Episode I: The Phantom Menace bonus disc (approx. 181 mins)

• “The Beginning” Feature-Length Documentary
• George Lucas On The Digital Revolution
• And much more…

Episode II: Attack of the Clones bonus disc (approx. 196 mins)

• “From Puppets To Pixels: Digital Characters In Episode II” Feature-Length Documentary
• State Of The Art: The Previsualization Of Episode II Documentary
• And much more…

Episode III: Revenge of the Sith bonus disc (approx. 327 mins)

• “Within A Minute: The Making Of Episode III” Feature-Length Documentary
• The Journey Part 1 & 2
• And much more…

Episode IV: A New Hope bonus disc (approx. 101 mins)

• Aboard The Death Star Overview
• Discoveries From Inside: Weapons & The First Lightsaber
• And much more…

Episode V: The Empire Strikes Back bonus disc (approx. 125 mins)

• George Lucas On Editing The Empire Strikes Back 1979
• A Conversation With The Masters (2010)
• And much more…

Episode VI: Return of the Jedi bonus disc (approx. 163 mins)

• Conversations: The Effects
• Death Star II Space Battle Overview
• And much more…

Episode VII: The Force Awakens bonus disc (approx. 149 mins)

• Secrets Of The Force Awakens: A Cinematic Journey
• Blueprint Of A Battle: The Snow Fight
• And much more…

Episode VIII: The Last Jedi bonus disc (approx. 165 mins)

• The Director and the Jedi
• Balance of the Force
• And much more…

Episode IX: The Rise of Skywalker bonus disc (approx. 157 mins)

• The Skywalker Legacy
• Pasaana Pursuit: Creating The Speeder Chase
• And much more…

It now also has a release date of 20th April, 2020.

https://www.amazon.co.uk/Star-Wars-Skywalker-Limited-Complete/dp/B082WXCSKN - £200

more here - https://www.amazon.co.uk/Star-Wars-Skywalker-Limited-Complete/dp/B082WXCSKN

Images for the 18-disc blu ray set:-

more here - https://www.amazon.co.uk/Star-Wars-Skywalker-Complete-Blu-ray/dp/B082WXD4ZH - £65

Images for the 9-disc DVD set:-

more here - https://www.amazon.co.uk/Star-Wars-Skywalker-Complete-Boxset/dp/B082WXXG7F - £45