Alright I got a hugeass plan for an alternate SCII, but I can't quite remember what had happened to all the factions and Youtube only told me stuff about DuGalle suiciding and Alexei dying.

So what had happened to:
-The Dominion
-The Protoss

Something else I wanna know is where the base of operations are for the leftover factions.

Mengsk returns to Korhal and rebuilds Dominion.
Kerrigan has control of the Koprulu Sector
Artanis rebuilds Protoss on Shakuras
Raynor and Zeratul disappear
Duran and the whole hybrid thing