I think such things will certainly be available in the long run, but there are probably things with higher priority for the 3d artists to be done first...
even for the very same type of task, adding more texture variations to a given mesh. For example, there are 18 different types of robes that share the same texture (for each race that has a robe mesh at all), and the appearance of a female klyros that does not wear armor is more than embarrassing...
If you can life with a custom colorization of your armor that is only present in your own client, you can try to modify the textures to your liking. That is not as difficult as one might think.