Arma 3 Epoch

[red_ned]

Alpha but probably worth keeping an eye on:
http://epochmod.com/index.php

[Juggati]

Hearing mixed reviews so far, buggy as hell, so no real change there!

[red_ned]

it will seemingly be very similar to the DayZ stand alone which is further along and rewriting parts of the Arma3 code to fit itself better.
It will be a race as to which is usable first i think then whether or not either can keep updates and new functions/features coming out while building a modding community.
Neither are ready for us to even think about switching over too and i doubt either will be till well into next year