There is no specific plan as of now, but intention is still there. We were going to extract Toolbox components and complete them to be more or less on par with Material, but with desktop specifics. Then situation changed for couple of reasons:
• World situation, you know
• Priority changes due to the above
• Not enough resources to design and develop highly customizable theme engine which would fulfill a lot of use cases. Otherwise it doesn’t make a lot of sense, because customization needs for desktop applications are vastly different and variant from those on Android.
So, currently there is no activity on such library, though some prorotypes exists, but we hope we can get back to this at some point. But please don’t rely on this in any of your planning.