You're right, but also, I don't remember all of the details. I've always been a big fan of the storyline behind the mithra, but being that I did them so long ago it is hard to recall everything. Kazham is home of which we know of, as well as a headquarters-- but if you notice... you never see the manthras. Again, I don't know where they were mentioned-- but I clearly recall them as being a rare but existing gender. Not sure if I want them to divulge the rest of the story-- it'd lose the mysterious appeal.
On a side-note, with as much time and effort that I placed into summoner... if they screw the job up I am going to be more irrate than the ranger. I honestly don't know if I want to deal with the "refresh prz"-- especially when the majority of the duration times do not justify the mp cost and BP recast.
To comment to Onions: It is common, actually, in MMO's for them to release content slowly. It is how renound MMO's have managed to continue so that their players continue to play and invest their time. Some have honestly released mid-beta, because the developers are not always ready to meet the deadlines or are under a budget. You don't hear about most've them as much, because if not careful, the game fails and is tossed under the rug.
In this game design, especially, it would be critical for them to do a slow release of the content as it is so full of "team-oriented" content. If your player-base is split between multiple content then you have a failure.