If I'm not mistaken, one of the goblin is in the north room while the other is in the west, so there surely are enemies in both rooms. Some round earlier, one of the goblin stopped shooting and did something. This is the one in the west room, so there is likely to be a trap/ambush in the west room waiting for us. Things are likely to be the same in the north room too, but since the goblin there shot at me last round, he is most likely to be there behind the door still.
It is best I think to not split the party. However, aforementioned, we will most likely have to fight on two fronts anyway, because if we all go in one direction, whatever enemies in the other room will probably spill into the current room and attack us from behind/on the side. Or it is also possible that we are over-thinking and there are only two goblins left to kill (unlikely).
Anyhow, extra caution ought to be taken in the west room, since it's dark, and we know the goblin did something beside shooting at us.