That other thread about Enumerate made me think: if Blizzard would reboot the Starcraft universe, what are the "things" that MUST be kept? What do you think?
It might be easier to list what can be removed/replaced/changed rather than what must stay. Here's my list below so far in no particular order. I'm not fully decided on some of these yet.
-Everything SC2 (you knew this was coming)
-Of course, everything form the EU
-Duke and Aldaris (imo it's more about what they represent in the story rather than the character themselves so I think they can be changed)
-Every Terran organizations other than the confederacy, Dominion/SoK and the UED
-Fenix (hard to say this but I can't say he's essential.)
-All Terran units except marine, ghost, Siege tank, Battlecruiser
-All Protoss units except Zealot, HT, DT, maybe Archon
-All zerg units except lings, Hydra, Muta
-Pretty much all buildings except pylons and the concept of creep
-The entire story of BroodWar except for the arrival of the UED (including Stukov and Dugalle) and also the fact that Kerrigan manages to play everyone somehow. Everything else can go. Duran, the matriarch, Shakuras, the Fall of Aiur, Hybrids (imo this idea is too obvious to be left unexplored though), etc. I'll think more about this since it's drastic...
-Magic crystals
-Every planet except Aiur, Char, Tarsonis, Khoral
-All cerebrates
-Ion Cannon
-Most dialogues except a few specific ones (not sure which right now other than that first interaction with the Overmind)
Edit: hmmmm, in retrospect, it might be easier to write a small timeline of plot points to keep and say everything not included can be changed. I'll work on that later maybe.