Apparently a digital release 
  will also be made available and rumor has it a 4th 
"disc" will be 
  included in that format.

Adventures Beyond The Ultraworld: Deluxe 
  Edition

Disc 
  One

    * 1. Little Fluffy Clouds

  * 2. Earth ( Gaia )
    * 3. Supernova At The End Of The 
  Universe
    * 4. Back Side Of The 
  Moon
    * 5. Spanish Castles In Space

Disc 
  Two

    * 1. Perpetual Dawn
    * 2. 
  Into The Fourth Dimension
    * 3. 
  Outlands
    * 4. Star 6 & 7 8 9
    * 
  5. A Huge Ever Growing Pulsating Brain That Rules From The Centre Of The 
  Ultraworld [Live Mix Mk 10]

Disc Three

    * 1. A 
  Huge Ever Growing Pulsating Brain That Rules From The Centre Of The Ultraworld 
  [John Peel Session From December 1989]
    * 2. Perpetual 
  Dawn [Ultrabass II]
    * 3. Little Fluffy Clouds [Cumulo 
  Nimbus Mix by Pal Joey]
    * 4. Back Side Of The Moon 
  [Under Water Deep Space Mix By Steve Hillage]
    * 5. 
  Outlands [Fountains Of Elisha Mix By Ready Made]
    * 6. A 
  Huge Ever Growing Pulsating Brain That Rules From The Centre Of The Ultraworld 
  [Aubrey Mix Mk 11 By Jimi Cauty & Dr Alex Paterson]

  * 7. Spanish Castles In Space [Extended Youth Mix]