In September 1997, Ian Marshall Fisher's seres of musicals in concert, Lost Musicals, was going to produce my reconstruction of Jubilee, which they had been advertising as "the Princess DianazM usical," since Diana is the name of the Princess in the musical.
I do not know two things: if the cast were the same as the 1999 production with the BBC Concert Orchestra or if that 1997 production was to be with piano or orchestra. What I do know is that, after the performance run, the cast was going to Abbey Road where John Yap was going to record the complete score, including all music not performed in the concerts.