Quote Originally Posted by AlexionSkylark View Post
What does that mean? I'll be able to equip a DRK soulstone in my lvl 50 CNJ, and it'll use all my CNJ abilities? then I equip a spear and put the DRK soulstone in it, retaining my LNC abilities?
OK, look, there are not many answers out there, but a moment's thought should have told you how unlikely these two thoughts are.

The new jobs don't function like the old ones because they are not class based, they are stand alone jobs. Other than that they will work just the same as existing jobs, only without the cross class requirements for enabling the job. No idea if there is a soul stone or some other accessory to specifically switch to the new job, nor have we been given to understand whether they can/will cross skill with other roles.

Personally I think it more likely that since these 3 jobs start in an insular kingdom they will more likely cross skill with each other than with other jobs. After all, it's the Warrior of light who has in many ways brought back the jobs, over and above the classes which the 'regular' guilds already teach. It's possible (perhaps probable) that they might inherit a few skills from the other classes, after all even the beast tribes and Garleans have individuals using the main classes (or at least class skills). So why not the Ishgardians as well?