Evolution: Addition of evolved zombie types listed here, and possibly some others.
Factions: Various factions will roam around the city. Civilians, military, zombies, fanatics, mercs, looters. They will have various tasks, outposts, allegiances, and tech to provide the world with as they fight for control.
Territories: Players will be able to purchase flags and stake claims to a portion of land in a new section of the map. On which they can build houses/outposts/shops/whatever.
Squads: Players will be able to manage a team of 3 AI troops. Selecting general appearance, weapon load out, classes, formations, and various other things for their team. Basically a more advanced version of the commander class, which will be modified.
Underlands: The sewer network under the city will become accessible, running electric/gas/water lines throughout the city and to the territories. A new faction of underlanders will also be available.
BioMech Armor: Players can purchase and upgrade suits of armor, which provide improved HUD, vital management, hotkeying, energy management for special systems, and maybe some other things.
Along with these major updates there will also be general improvements to user-friendlyness, some graphical improvement/additions, complete remapping of the controls, some minor bug fixes, tweaks, and various other things.
Also looking for some ideas about a looting system. Various scraps, and weapon parts, that can be crafted into weapons/weapon upgrades. Need a decent idea on how to acquire such items.