Conversation so far:
When did the London revival start?
began rehearsals for a planned 1971 London revival of Guys and Dolls at his National Theatre Company's Old Vic theatre.
However, due to poor health he had to stop.
What happened after he stopped?
his revival never saw the light of day.

Question: Was there another revival?
Self-contained rewrite: Other than the 1971 attempt to revive Guys and Dolls in London, was there another attempt?