Box-Shadow and Transition for Components

I’m not creating a Feature Requests since it’s clear that these will be available at some point, according to the lives.

I’m curious what the plan is for the missing CSS properties.
Can we expect them soon or will it take some more time?
I’m aware that these might be trickier to tackle due to their GUI implementation.
Like all the other already available properties, these ones are essential for me too.

Any input is appreciated.