FFXIV team just released a freaking awesome video. It's about FFXIV charatcers playing a fighting game a la Tekken style.

https://www.youtube.com/watch?v=8yZXjxuoEGA

In the end the video states that this was created by using the in game 3D grpahics and that a 2D combat game is not planned.
Well it's time to make real plans for it as a stand alone or in game "mini game" and you can have my money.