We know that there are four new Black Ops 3 maps and a new Zombies experience. That's what every new Black Ops 3 DLC map pack includes and there is no chance that this will be an exception.
This includes a Raid remake as Empire and three other maps. Here's a quick look at what's coming.
Cryogen - Located far off the coast in the Dead Sea, an isolated compound holds some of the world’s most dangerous criminals in frozen isolation. Sentry towers keep watch over the the small map’s circular design as frenetic combat is funneled around the prison’s cryogenic tubes which offer plenty of opportunities for wall running attacks.
Berserk - Ancient sentinels from a lost civilization guard the entrance to Berserk, a Viking village frozen in time. Fight through blizzards and control the center bridge as you navigate this medium-sized map’s wooden buildings and craggy rock outcroppings.
Rumble - Fight it out among mechanized warriors in Rumble, an arena where giant robots battle to the roar of the crowd. The small-to-medium-sized map funnels high-speed combat to the central pit with tight corners throughout the exterior of the stadium.
Empire -The fan favorite Call of Duty®: Black Ops II map, Raid, gets a fresh upgrade enhanced by the Black Ops III chained movement system. The classic medium-sized map features an authentic Roman villa recreated by a modern-day eccentric billionaire and mixed site lines enable any style of gameplay.
In addition to four new maps, you get a new Black Ops 3 Zombies experience in Gorod Krovi, aka Stalingrad.
Activision describes this as, "In the latest episode of the Zombies experience ‘Gorod Krovi’, the Origins characters are hurled into an alternate, war-torn Stalingrad where Element 115 has wreaked havoc over a battlefield littered with the remnants of a battle between mechanized soldiers and deadly dragons controlled by Group 935. Here, the Origins characters will face their most dangerous enemies yet."