Battlefield 4: Second Assault is touted to arrive on Xbox One from November 22nd onward, where that pack will feature a quartet of classic Battlefield 3 maps, namely Operation Metro 2014, Caspian Border 2014, Gulf of Oman 2014 and Operation Firestorm 2014. Not only that, there will be five “re-mastered” weapons, a Dune Buggy (DPV) vehicle, ten assignments that feature new unlocks, and a Capture The Flag game mode from Battlefield 3: End Game.
As for Battlefield 4: China Rising, that particular expansion will be made available from December 3rd onward, with four totally new maps that are called Silk Road, Altai Range, Guilin Peaks and Dragon Pass. You will also have five accompanying new weapons, a pair of new vehicles and ten assignments with new unlocks. [Press Release]