This morning the company said it is not only planning on changing the shape of two of the chocolates, but it's also (gasp) altering the wrappers of the sweets.
From now on, Roses will come in tear-off wrappers, much like in Cadbury's other chocolate selection box, Heroes, rather than the twist-off wrappers, which date back to 1938.
According Claire Low, a spokesman from the company, the top complaint it received about Roses in 2014 was about "poorly-wrapped" chocolates contaminating the flavours of other sweets in the boxes. The new wrappers will also be easier to open, she said.
The shake-up will also mean the long and thin coffee escape and the crescent-shaped hazel in caramel will become rounded squares - because, according to the company, it fits better in the mouth.
"Holding the chocolate in your mouth and letting it melt slightly before you bit will allow for maximum flavour and the moment of enjoyment will last even longer," said Dave Shepherd, head of innovation at Cadbury.
"That's why we've opted for this new design, as the more rounded and smoother shape fits better to the contours of your mouth, creating a better melt in the mouth experience."
That's all well and good, Dave, but will it still evoke the Christmases of our childhoods? Guess we'll have to wait to find out.
Egg on their face: How Cadbury has changed family favourites
In January last year Mondelez admitted it had changed the recipe of Creme Eggs, abandoning the traditional Dairy Milk shell in favour of a cocoa mix. That created a huge backlash - leaving the company with egg on its face as profits melted...
Fruit & Nut bars
In November last year the company announced plans to change another favourite, Fruit & Nut bars, adding sultanas to the bars for the first time.
"While raisins have traditionally been the 'fruit' of Cadbury Fruit & Nut, sultanas have been brought into the fold to add more variation," said a spokesperson. Hmm.
Milk Tray Man
This year Cadbury resurrected the suave Milk Tray Man character - but launched a nationwide competition to find the right man. After an exhaustive search, 39-year-old Patrick McBride, from Liverpool, won the contest.