The main thing I was looking forward to was the transparent slider for the chat box.
Being colorblind i just want it to be a solid black background so i can actually read my chat. Thought it was to be done in 2.1. Still not sure why it was removed from beta. Makes no sense.

Only other thing i would like is an ability reset for the companion chocobo. Would be something to actually spend our GC seals on, even if it was like 20-30k id buy it