I've seen these. My guess is it's something to do with making the packaging more recyclable (or from more recycled material). The new packets are much less shiny - matt rather than metallic.
Why did,
"I know, let's make it more environmentally friendly",
Using contrasting warm hues and subtle tones of purple and flowing, bespoke typography, the new design drives on the warmth of this iconic brands personality, enhancing its emotional connection with consumers.
The entire typeface is embossed in order to bring out the layers of mystery and excitement around the brand.]
No, the surprise is NO praline!