Quote Originally Posted by Holy_Dragoon View Post
Perhaps CON will not lose the nukes...
...unless...

As part of WHM job lore, the conjurer is forced to give up harmful magics in order align himself with the Astral conscience.
Well, they have mentioned that playing the role of a job may cause some abilities to become unusable until you switch back to being the originating class. So, it's completely possible that the storyline for CON > WHM will be "you have MP, stand in back and cast cure."