Ahem.
So the subclasses for the Sorcerer are as follows as of 5e.
Aberrant Mind
Clockwork Soul
Draconic Bloodline
Divine Soul
Shadow
Storm
Wild Magic
Draconic and Wild Magic are the default ones available in the Player's Handbook. Do you think we could see the others appear?
I don't think so. They already said that the classes and sublasses are going to follow the PHB.
How knows what's gonna happen after release but IF it happen a day, it's probably gonna be as a DLC or a MOD.