They will be punched into piano rolls that whimper wobbly tunes. They drop out of our body perception and turn into surfaces that move before our eyes. They become impossible, and thus don't have to be outlawed, for they are nothing, and they don't exist anymore. They have a supply of possible moves, but as with our clothes, nothing will be repeated the way it was done before. There must be no theatre anymore.
Nothing lasts forever, anyway.
In the theatre we can prepare ourselves for entering the dimension of time. Stage people do not perform because they are something, but because their unimportant traits become their real identity. On the stage the ornament becomes the essential thing. Without being concerned with reality the effect becomes reality. The actors signify themselves, and they become defined by themselves.