What does that get you that the corridor just outside doesn't, (except for having a bunch of hostiles near you)? Hence me specifically querying the value of merely going to the area of the doors; I really was not sure what you meant.
Con- there's no point spreading your bets with Kai. If he IS hostile and you leave someone behind to find out, they might never be able to tell you. Likewise if he is not. The situation is simpler than that- if he is hostile, move. If not, stay. You can get yourself killed trying to find a clever middle ground