No, so far nothing has been done to support the LP MKII.
But if you could manage to describe the device in terms of a control-map file, that would be really useful
(a control-map is a layoutof the messages that the device can send)
For reference, you can check out the control-map for the classicLaunchpad:
Having a description of the LPMKII should make Duplex applications able to run on the device, even if the colors are a bit wrong.
Take a copy of the whole /controllers/Launchpad folder to begin and use it as a starting point?
Perhaps getting rid of all device configuration but one - you can use them as starting points but they all need a unique name (as defined inside the file)
More tips on editing Duplex files here:https://forum.renoise.com/t/how-to-start-editing-duplex-files/30979
Later, I could create a basic driver for the controller - to support the RBG LEDs. Next week or so.