I believe Yoshi-P said they were looking into it, however they had to concentrate on server fixes and expansions first. But yeah an afk kicker in a popular game should definitely be a priority.

They've been forcing people to roll on low pop servers away from friends since the start of p4 beta... One would hope that would change soon. Personally I haven't play my "magic" type class character yet as I am waiting until I can get onto a server with a friend.