I was bought up on Cadburys and was so dismayed at the changes Mondelēz made to Dairy Milk, I wrote to their customer service about the change of taste and texture a few years. They told me I was wrong, the recipe was exactly the same, and the only changes they'd made was the shape of the bars as they made it easier to transport 
These past few years I've mostly eaten Flakes as they still smell and taste the same, and the occasional (huge) bag of giant buttons. However, I gave up chocolate completely a few months ago to try to reset my eating habits. (And also because I suspected the palm oil was irritating my stomach. Since I've given up Cadbury's and other cheap chocolate I've not had any stomach problems.)
Prompted by this thread, I bought some Love Cocoa 37% milk chocolate in Planet Organic. It went straight in the fridge as I love chocolate super cold. (Since the takeover, Cadbury's has always been every so slightly soft/melty at room temperature, which just adds to its waxy yet weirdly crumbly texture.)
Anyway, gosh, Love Cocoa milk chocolate is very very good, isn't it. Lovely snap and so creamy if you let it melt on the tongue. I had some yesterday and another few squares today and today I'm convinced I can taste a little of the Dairy Milk creaminess.
James, if you're reading this, I do hope you do try to recreate the original Daily Milk, you will be the most popular man in the UK if you manage to!