I don't think physicalism will be dead until matter, including the human body, disappears, if such a twist would ever be possible. Matter, and our experience of it, seems to be a "bedrock" fact. Yet so is our mental life, which perceives external matter as an object external to the psyche, and perceives the body as functioning in a "different category" from psyche. As long as some people think of themselves as (supposedly, in Teilhard's words,) "spiritual beings having a physical adventure/experience", they will hold to a dualistic split between psyche and matter, a split that rests both on the physical reality of matter and on the non-physical reality of psyche ... thus a form of physicalism will be preserved in these people. And as long as some people think of themselves as purely physical beings living out patterns of material existence ... then, of course, physicalism will be their position.
The only escape from the dilemma, as far as I can figure it, would be a series of documented, peer-reviewed veridical OBEs, in the lab through voluntary cardiac arrest and from an anthropological approach, studying the OBE claims of sages, teachers, shamans, "God-realized/Self-realized" people, gurus, native practitioners, and such people around the world, who claim to undergo frequent, real dissociation and "travel" away from their bodies.