This is NOT a brand new cube! For some reason my previous overview was deleted. New one pending. For now:

WUB: Artifacts
UBR: Sacrifice
BRG: Lands
RGW: Tokens
GWU: Counters
WBR: Aggro
URG: Stompy
BGW: Enchantments
RWU: Spells
BUG: Graveyard

This is sort of oversimplified, but these decks can be built. There is certainly crossover in the archetypes.

Guilds-
WU: Flicker
UB: Artifacts/Reanimator
BR: Treasure/Graveyard
RG: Lands/Stompy
GW: ETB/Enchantments
WB: Aristocrats/Lifegain
UR: Wheels/Spells
BG: Graveyard/Lands
RW: From Exile/Equipment
GU: Value