Included in the announcement was this line:
The Hong Kong stamp reels will be produced on a digital press rather than the original gravure printing.Royal Mail have confirmed that this refers only to the basic stamps without machine printing. Instead of a long print run in gravure, this will be a shorter print run not in litho, but with a digital printer. We can expect the same situation to apply for the New York exhibition next year.
A GB-printed version will be available from Tallents House and we can expect this to be on the same digitally-printed base stamps.
This may not be the case, see comments. I am seeking confirmation.