And from what we saw of the achievement list and the story here what you will see in the game:
You are a half human half cyborg soldier sent on an island during a post apocalyptic war where you need to find infos on a biological weapon.
On the island you will fight robots and differents type of creatures (new animals) like dragons with lasers shooting out of their eyes and many more.
The game still use Far Cry 3 gameplay,its a open world and you can unlock/use different skills as you lv up and get attachments for your weapons (the bow is also still there if you look at the achievement list).
You can have save hostages missions.
The collectables in this one are VHS tapes,scientist notes and hidden messages in TV screens,thats very 80's-90's.(The Dr notes replace the WW2 soldier journals,the VHS tapes replace the relics and the TV sets replace the portable computers)
Also since its a post apocalyptic world,i suppose the island will have lots of weird and dead vegetations with high tech outposts/bases.
And lots and lots of Neon lights.
Cant wait to see the full game when it come out,its gonna be fun.