They just posted a teaser of something new coming, for now the internet thinks it is a deck of playing cards:
There is nothing new in the device database: https://device.report/Arturia/ so hopefully these are new versions of the Astrolab (the 88key and/or the Mini version).
There is also the possibility this is the Microlab MK3, as it is already leaked by several retailers:
The keybeds of the old Microlabs are the best for this class of really tiny keyboards. Looking forward to the next generation. And hopefully in different colours again.
However, this rubber cover including cable fastening is missing on the new model. Which is a shame, because that was a great feature.
I assume the “play” in Ready to Play is related to that Augmented Mallets Play VST from a few months back, which seemed like the first in a series.
I’m guessing it means more sampler instruments for Analog Lab, probably with a smaller footprint/cost than the Augmented series.