Well Infinity Ward won't include any old maps from the Treyarch CoD's [Call of Duty 3, World at War , Black Ops or Black Ops 2].
It will depend on how lazy IW or the company that has developed the multiplayer this time [Raven Software] is going to be.
I'd prefer all new maps rather than old maps re-skinned - even though I'd have an advantage having already played the map in a previous title.
So far Dome looks set to return as 1st and 2nd dlc map pack maps have been leaked. It could be a new map with the name Dome, but i'm just gonna assume it's an old map returning in Ghosts. On a side not extinction level 2 is coming.
unless old maps are free i think its disgusting that they add them into DLC and make us pay for them AGAIN
I agree, I won't purchase any dlc that has stuff in it I already payed for once. If I wanted to play a mw3 map, I'd play mw3.