From this evening until next Friday, there are scrumptious Blizzard-given buffs for anyone playing Diablo 3: Reaper of Souls - Ultimate Evil Edition (the console game).
On PS3 and Xbox 360 - yes they're not left out this time - the buff manifests as a 100 per cent bonus to XP. This stacks with any other XP bonuses available in game.
On PS4 and Xbox One, the buff manifests as double Treasure Goblin spawns. Now that there's a chance, in recently added patch 2.1.0, for those goblins to spawn a portal to The Vault - a realm of great treasure - that's a welcome buff indeed.
Specifically, the buffs will be applied from 12am PDT, which is 8pm UK time.