There was an idea on these fourms awhile back, it was something along the lines of having the trait's on armors (such as Enhances fists of wind or whatever) , and allowing you to spiritbond it (or maybe some other kind of bar) once you did that you could "learn" the trait. and using a menu you'd be able to set a certain number of traits on your character. (i think they also said something about certain traits having different costs and you could not exceed a certain amount.)

Sort of like a Trait version of how BLU worked in XI i guess, though it was inspired by FFIX.

I personally enjoyed the general concept though it could probably use some tweaking and whatnot.