What can SE learn from Bioware's failing Star Wars MMO?

[Otaku]

dont clone games, thats what ya gotta take away

This

Taking elements from a game is one thing but pretty much re-skinning one is another
I won't mind if XIV takes elements that work in say WoW, XI, GW2 or even DAOC but if a game is too close to the original game you might as well just play the original game.
I will say one thing that has kept me coming back to the FFMMO series is the "one character" model, I played SWTOR for about 3 months and got 2 characters to 50, whenever I wanted to switch roles (ie we need a tank not a healer) I had to log out and log back with my other character, something I think SE has actually done right.