If you listen carefully to the vintage mix of 'Any Day Now' you can hear where Elvis' vocals were replaced and can hear the repair drop in and out of the track. Clearly during this song Elvis' vocal mic is picking up residual sound from the drumkit - when we're hearing part of the original vocal track we can hear bleed through from the kit centred in the stereo image. When we hear the vocal repair section we only hear the drums though their dedicated track, which is mixed hard left. When the vocal repair section finishes, Elvis original vocal track is faded back-in which has the side effect of bringing the drum bleed back into the centre of the sound image. People will probably need to listen on headphones to notice this.

Remixed versions of 'Any Day Now', 'Power Of My Love', 'True Love Travels On A Gravel Road' and' Who Am I?' can be found on The Memphis Record.

The re-recording of 'And The Grass Won't Pay No Mind' can found on the 2015 album If I Can Dream, which contained Elvis' original vocals but with new backings by The Royal Philharmonic Orchestra, and which actually went to number one in the UK album charts.

Sessions III lists Elvis' harmony vocal overdub of 'Do You Know Who I Am?' along with the vocal repair of 'And The Grass Won't Pay No Mind' as being done on September 26, but this surely cannot be the case as the strings and backup vocals were overdubbed on March 25 for 'Do You Know Who I Am?' and May 7 for 'And The Grass Won't Pay No Min'd, and the acetate of 'Do You Know Who I Am?' found on Memphis Memories does not contain these overdubs, meaning it must have been cut before then. The most likely date for Elvis' vocal repair and harmony vocal overdub of 'Do You Know Who I Am?' and vocal repair of 'And The Grass Won't Pay No Mind' is February 22. This same scenario also applies to 'Only The Strong Survive' and 'The Fair's Moving On'.

It is also unknown when Elvis replaced his vocals on 'In The Ghetto', but this day while Elvis is doing vocal repairs in the studio, fits better than the January 24 session, as I believe Elvis couldn't have replaced his vocals then. I believe the much better, repaired vocal would have been used for the rough mix if it had been recorded by the time of the "Draft Mix Tape", but it was Elvis' original vocal, along with backup vocal overdubs, which was used on that tape. 

Although there are no backup vocals present during Elvis' vocal replacement on 'In the Ghetto', the "Vocal Group" track (track 2 of the 8-track tape) will have been turned off while Elvis replaced his vocals on track 7 of the 8-track tape.
Track 1 = used for later hi-strings overdubs
Track 2 = used for vocal group overdubs
Track 3 = used for later brass overdubs
Track 4 = used for later low-strings overdubs
Track 5 = used for bass
Track 6 = used for piano, organ & rhythm guitar
Track 7 = used for Elvis' vocal (original vocal erased and re-recorded)
Track 8 = used for drums

Different remixed versions of 'In The Ghetto' can be found on Elvis 30 #1 Hits (E1) and The Memphis Record.

The re-recording of 'In The Ghetto' can found on the 2015 album If I Can Dream, which contained Elvis' original vocals but with new backings by The Royal Philharmonic Orchestra, and which actually went to number one in the UK album charts.

By taking out two of the four channels from the rare Japanese Quadraphonic LP of From Elvis In Memphis is how the "previously unreleased versions" were created on the bootleg The Other Side Of Memphis (Bilko).

In March of 2007, Sony decided to go through all of Elvis' masters. They retransferred everything and remastered all tracks including repairing as many clicks, pops, bad edits and dropouts as they could. They have used these newly mastered recordings on their new releases since 2007 including budget soundtracks, Legacy releases, the 30 disc Complete Elvis Presley Masters collection and the Franklin Mint package.

Thanks to Matthew Worsley regarding the vocal repair on 'Any Day Now'.

Sample of 'Any Day Now' with Elvis' original vocals in the left channel and his repaired vocals in the right channel.

Sample of 'And The Grass Won't Pay No Mind' with Elvis' original vocals in the left channel and his re-recorded vocals in the right channel.

Sample of 'Do You Know Who I Am' with Elvis' original vocals in the left channel and his repaired vocals in the right channel.

Sample of 'In The Ghetto' with Elvis' original vocals (and overdubbed backing vocals) in the left channel and his re-recorded vocals in the right channel.