The only -ra and -ga spells we need are the renaming of II and III spells. Fire II becomes Fira, Fire III becomes Firga, Shock II becomes Shockra. Unless they have plans on letting you use EVERY single spell you learned without adding it to your action bar (the mini-menu in FFXI), removing aoe toggle and adding a copy of every single spell would be so very bad.

You gotta remember this game has very different mechanics for skill and spell usage than in FFXI. you cant just do everything your class/job can do as a mage. you should find right now that you cant set all your skills, and it continues on until R50. you cant set everything now, you wont be able to set everything at all if they split the spells into separate single target and aoe spells.

And unless they say they are going to get rid of the ac system, it is only speculation and 'hope' that they might possibly do away with it. so until then, this desire to have an aoe copy of every spell is a bad idea.