Roald Dahl audiobooks - new narration

I've noticed that the new Roald Dahl audiobooks have new narrators.

Will the original Roald Dahl cards be getting updated to these new narrations?

I'm hoping they won't be, because my autistic son would be very confused/stressed by the change for some of his favourite stories.

I know in the past some of our cards have been updated with more tracks/numbers added etc. a few months after we've purchased them.