Yeah yeah I know, we know almost nothing about the game compared to its sophistication but we still may have this fun thread 
(of course it's based on the trustful assumption that Pdox won't cut anything from the release version but develop those afterwards)
My hopes:
*Ex Machina - DLC introducing artificial/robot/synthetic/AI/however you name them races not spawned by organic evolution. They are deeply different from the organic races and you can set thei origin in the very beginning:
- Exterminated creators
- Defeated but not killed of creators
- Left by mysterious creators
- Creators wiped out by natural phenomena or nuclear war
- Origins unknown
Additional features: cyborg modifications of genome, cyborg armies (von Neumann probes), AI uprisings etc
*Incognita - DLC introducing new alien phenotypes (Plant, Coral, Wormlike), new Genetic Traits, new special advanced Ethos governing systems such as Hive Minds or Randist Economies (radically differing from usual gameplay)
*Arise - DLC allowing on the gameplay as pre-spacefaring race put in the galaxy of major Stellaris races, you need to survive, advance and outsmart them
*Exodus - DLC allowing to play as the race without homeworld, entirely packed on a starships
*Synesthesia - DLC introduxing culture and cultural gameplay to the game, along art, spirituality, tourism etc
*Music and art packs
(of course it's based on the trustful assumption that Pdox won't cut anything from the release version but develop those afterwards)
My hopes:
*Ex Machina - DLC introducing artificial/robot/synthetic/AI/however you name them races not spawned by organic evolution. They are deeply different from the organic races and you can set thei origin in the very beginning:
- Exterminated creators
- Defeated but not killed of creators
- Left by mysterious creators
- Creators wiped out by natural phenomena or nuclear war
- Origins unknown
Additional features: cyborg modifications of genome, cyborg armies (von Neumann probes), AI uprisings etc
*Incognita - DLC introducing new alien phenotypes (Plant, Coral, Wormlike), new Genetic Traits, new special advanced Ethos governing systems such as Hive Minds or Randist Economies (radically differing from usual gameplay)
*Arise - DLC allowing on the gameplay as pre-spacefaring race put in the galaxy of major Stellaris races, you need to survive, advance and outsmart them
*Exodus - DLC allowing to play as the race without homeworld, entirely packed on a starships
*Synesthesia - DLC introduxing culture and cultural gameplay to the game, along art, spirituality, tourism etc
*Music and art packs
- 4
- 1