How willing, do you think, would a gamer be to learn a whole new "language" just to play a game? Unless such a "language" has practical uses in activities other than gaming, I find the prospect of anyone having the dedication to familiarize themselves with such a system of communication highly dubious.
Winterfox, who said anything about learning an entire language based upon symbols? I suggested an update of Crawford's system, which used no more than 60 symbols, sounded reasonable. And judging from the number of people I've seen who can easily select the mage and cleric spells they want in BG2 based on nothing more than an icon, I would think this isn't too difficult a thing to bring about--given sufficient motivation, and a reasonable selection of symbols. As I mentioned above, we've already learned plenty from the Web and Windows. So universality isn't impossible.