Another retainer is already confirmed. TP bar is a must. With the same logic MP appears TP also needs to be visible. Hide both or show both. One or the other only is not a logical solution. Glamours for job only is another must.
Another thing I would like to see in game is a Notification Center System.
There along with a Calendar you can set your activities in game and get a notification pop up upon your login as a reminder for the thing you have to do. Be it help an FC member craft or whatever. Also this system would be really useful to come to our mobile phones too along with the official app.