When AI approximates Machine Intelligence, then many online and computer-run RPGs will move towards actual RPG activity. Nonetheless, that will not replace the experience of 'being there,' any more than seeing a theatrical motion picture can replace the stage play.
I was heavily into AD&D in my teens (late 1970s-early 1980s) but fell off the RPG habit in the mid-80s and have never gone back to it; my lifestyle today isn't very compatible with having a regular gaming group (too much travel).
Send anyone claiming that their RPG activity is an art form my way, and I'll gladly stick a pin in their head and deflate it just to have the satisfaction of the popping sound that makes. One might play a game artfully, but that makes neither the game nor its play art.
Some of the roots of role-playing games (RPGs) are grounded in clinical and academic role assumption and role-playing exercises.
It's an old magical principle - it's even filtered down into RPG systems - that magic, while taking a lot of effort, can be 'stored' - in a staff, for example. No doubt a wizard spends a little time each day charging up his staff, although you go blind if you do it too much, of course.