That bold part there is actually what some are hoping for. It might be stupid, it is just a name, but in a way it's not, being that it's a final fantasy.I've gotten used to the current classes and jobs, and if they replaced them I would dearly miss them. If I wanted to go back to playing RDM/BLM or WAR then I'd go back to playing FFXI. Right now I love being archer yet using a skill from pugilist to recover health. I would not want to see too much change to classes after the redesign.
IF however, the change was simply to rename some classes to be more clearly recognizable (ie. the magic disciplines) I could go for that.
I'm not hoping for major changes to the individual classes themselves. A name change, drop the weapon = class idea and go with the traditional class = what weapons you can use, then slightly less freedom by restricting some key abilities. May also have to improve the potency of some of the restricted abilities like protect and shell, but I think that might be due to the current calculations.
By restricting certain abilities you can easily make some classes more unique.