I, however, wonder if Keats has read Greg Egan's Permutation City or similar science fiction. Keats' neural patterns, if ever completely measured and recorded, might be enough to "resuscitate" him as a conscious simulation at some point in the future. There, he'd be at the mercy of those with the rights to his "pattern." Would he be a mental slave laborer? A plaything?
So, a short story concept: Keats' present-day lark of a performance piece condemns him to potentially infinite confinement in a dark future, after not-so-nice people buy up his reproduction rights. Meanwhile, his peers who "retained their self copyrights" enjoy immortality in a near-paradise, enabled by the same technologies that imprison Keats. Imagery evocative of traditional fables about "selling one's soul to the devil" would be used throughout.