It could work, it just can't be what is has been in other games, unless they get rid of the set up they have going where one class or job can't have more abilities than any other. The amount of skills you would get would end up being limited, and you can tell they are hesitant to add in more skills because everything has to be balanced basically around controller hotbars. They have said something about possibly looking into reworking the armory system, so if they do this, it will open up a lot of opportunities I think to add in some really cool stuff, but as it stands now they have their hands tied with what they can and can't do.