In an attempt to clean up deprecated packages I stumbled across ConsoleKit, which we still carry in openSUSE:Factory
At this moment, there is actually only one package left that depends on ConsoleKit - the package being lxdm.
Yes, of course, this is part of LXDE, but it is not mandatory to have an OWN display manager for every desktop environment (anyway only one will be active on any given system).
What would be the general feeling of dropping lxdm from the distribution and use lightdm as the 'favorite' DM when installing a lightdm setup afresh? lightdm is also lighweight and is used by a couple other DEs as well, so sharing this would certainly make sense.
And to make it clear: I am not advocating to remove all of LXDE, only the display manager.