Gentoo and Systemd: Can openrc be uninstalled without breaking other packages?

Gentoo and Systemd: Can openrc be uninstalled without breaking other
packages?

I switched my Gentoo system from openrc to systemd, and everything seems
to run fine as long as both are installed.
Nevertheless, after emerge --depclean, which removes openrc, the
gentoolkit program revdep-rebuild does not work any more (it misses
/etc/init.d/functions.sh and the einfo command). Now the question is, can
I get rid of openrc (and sysvinit) without breaking packages, and if yes,
how?
Should I wait with further steps until bug 373219 is fixed?