Not soon. You can't run journald without systemd now, and you won't be able to run systemd-udevd without systemd as soon as kdbus gets merged, which the systemd devs are pushing for heavily.
Your information is out of date with respect to systemd-udevd, per https://news.ycombinator.com/item?id=10518933 and others; and your assertion about journald is simply wrong unless something has changed very recently.
