Cliff notes of article:
*Takes place 10 years after original Bioshock.
*Jack left with the littler sisters (good ending)
*The big sister is a little sister who returned, and know controls the city.
*You play as a rogue Big Daddy
*You use the same weapons as the big daddies (ex: the drill)
*Unlike other big daddys, you can use plasmids.
*You can now heal hacked bots
*Using multiple plasmids make them more effective (ex: use cyclone trap and incinerate to create a fire tornado).
*You can use weapons and plasmids at the same time.
*When you encounter a little sister, your options are to either harvest them or adopt them.
*You still fight big daddys to get the little sisters.
*If you adopt a little sister, you carry her around, and she harvests Adam from dead bodies. While she harvests the Adam, you have to protect her from attacking splicers.
*You can also get Adam if you help adopted little sisters escape rapture.
*The Big Sister is in control of the city, she is very powerful.
*Dr Tenenbaum is back, she wants you to stop the big sister.
*After you kill a few big daddys, the little sister will attack you.
*One of the levels is Fontaine Futuristics.
*As a Big Daddy you can leave Rapture, and walk on the sea floor.
*More audio recordings.
*There's something similar to a Vita Chamber.
*There will be Multiplayer parts to the game.