Question was brought up on the Japanese side thread regarding self shadow.
Japanese original thread link: http://forum.square-enix.com/ffxiv/threads/958

I know someone was asking about DirectX on the NA side forums so just translating this part for Reps answer they got from YoshiP.

Translation may not be correct so adding original text with translation on bottom. Give the credit to the original post from Triairy if you like it.

Quote Originally Posted by Triairy View Post
皆さん、こんばんは。

ご質問にあったDirectX 10/11などへの対応についてプロデューサーの吉田に聞いてきました。

PS3版の動作を考えると、今すぐ対応する予定はないそうです。

将来的にグラフィックに大きな変化や変更が入る場合であったり、DirectX 10/11の普及度合いであったりと、必要なタイミングを見極めての対応を行っていきますとのことでした。
Translation:
From Triairy
I have brought the question regarding the question for DirectX 10/11 support to Yoshida producer.

When PS3 is brought into action, we are not planning anything soon.

In the future if there is going to be a big change in graphic or DirectX 10/11 being extent/spread (?? not getting this part) We will see through the timing required and work on it.