>> However, AFAIK work is underway to make an
>> independent version of kwin that does not rely on KDE's libraries,
>> therefore we should be looking at what will be needed to make the switch
>> once that version is available.
>
> Who guarantees that kdelibs5 will not be pulled in again later?
>
> Nik

We do, by maintaining a GIT submodule referencing the correct version of
kwin.  If kdelibs5 is pulled back in we simply freeze kwin again until
upstream repairs the damage. ;-)

Tim