I have heard something which goes like this.
You use the glyphs of a certain way to cast your spell. When the spell has been cast, you need to purify those glyphs in order to use them again...
It\'s not very detailed, and I\'m not even sure that\'s how it\'s going to be, but my \'sources\' haven\'t failed me too bad, yet, so maybe it\'ll be something like this. I don\'t even know how purification of glyphs is going to work, but I know for certain that it wont be a Click\'N\'Boom kind of system. It\'ll require wits to be a mage.

And as far as what I know, any mage can cast any spell, as long as they have and know the right glyphs for the spell, however, Mr. Newbie Mage with 5 intelligence shouldn\'t think himself able to cast UberThunderOfDeathAndDestruction. He\'s simply not good enough, and if he even tried casting a spell he wasn\'t qualified for, it would blow up between his hands and turn him into a small pile of smoking red flesh and such.
Anyway, whatever the system turns out to be like, it won\'t be anything used in previous MMORPGs. A few similarities maybe, but that\'s about it. So you can easily count on getting something fresh and new to play with, that\'s for sure.