I would like to see a story that posits that consciousness can be moved to a silicon/computational substrate, but can only do so gradually. That consciousness can be induced to gradually grow into a cognitive resource, like new hardware connected into the wetware, and then you can retire/remove old parts of its old wetware non-fatally. So that if you connect the new mind substrate (tech) to the old mind substrate (brain) and are patient and attentive and work at it, you can slowly transition a mind off the meat and into the metal, and then once it's mostly running on metal, kill the meat. But, since this is a learning and brain plasticity exercise, not unlike recovering from a stroke, it takes on the order of months or years to do.