ArmA: Queen's Gambit
Info about expansion
ArmA : Queen's Gambit, which will feature two real campaigns: Rahmadi conflict (probably the original campaign that wasn't ready when Arma was released) and Royal Flush, taking place 18 months after the first conflict. In expansion will be new small tropical island, which name is Porto. The expansion will feature also two mp missions and the 1.08 patch, adding new units and weapons.
Expected release is end of 3.Q 2007