Yes, bloody frustrating! Only been waiting 47 years to see it again!
Anyhoo, When I last looked on the Network sit, it had dissapeared, so I emailed them - this is the less than helpful response:
Dear Customer, Thank you for getting in touch with Network. We’re sorry that The Flower of Glocester continues to be delayed. This title is part of a batch of ITV titles that are still in the process of being cleared, as we announced a few weeks ago. We appreciate many of our customers will be disappointed, and we are too, but we will bring it to market just as quickly as we can. Many thanks for your continued support Dave
I am not aware of any announcement. And by the by Flyboy, this TV series has nothing to do with Temple Thurstons book 'The Flower of Gloster'.