I don't think so. Bitcoin is meant to be transacted peer to peer according to Satoshi and it will not be effective if it's going to be in physical form, it will be more useful if it is going to stay as a digital coin. The safety and security also is ensure in bitcoin unlike in fiat that can be stolen easily by anyone if you're not really careful. We should just hope that bitcoin and fiat would work in harmony instead of hoping that it would appear in physical coin cause it just wouldn't work well that way.