Most of this is either rumour, or simply won't exist on tape. The only slim chance we have is for some more rehearsal material to yield a surpise or two. Remember "Twelfth Of Never" was rumoured for years and finally turned up. And I'd totally love a good quality recording of "Portrait Of My Love". Apart from that, we need to accept that we have pretty well heard every song Elvis sang that happened to be caught on tape.