Hmmm. Perhaps more reasoning behind "That's actually a terrible example" would help. The point is, it's far from unusual for a London cast recording to be the only cast recording.
There are also exceptions: Matilda, Cats, Evita. But it seems there are more London transfers that do not do 2nd recordings - add Blood Brothers, Starlight Express, Aspects of Love, The Woman in White, etc.
Considering the London production only ran two months, I would guess that there's not a great chance of another recording, unless Sheik or the producers have six-figures already budgeted for one.