Blizzard confirms PS3/Xbox 360 saves can carry to both PS4 and Xbox One.
Coming to Xbox 360 and PS3, too, alongside previously announced PS4 version.
Reaper of Souls post-launch content updates planned, but long-term plans for franchise still being discussed.
But Blizzard can't formally confirm an XB1 release for Ultimate Evil Edition yet.
Blizzard's goal is to "bring Diablo 3 to as many players as possible".
Saints Row 4 prevents Rome: Total War 2 from claiming the No.1 spot.