No, and systemd would not add compelling features to the Hurd, since the Hurd already provides most of the advertised advantages of systemd, but cleanly integrated into the system — and has been doing so for decades.

Some of the reasons for that are discussed in this article: http://www.draketo.de/light/english/free-software/some-techn...

If you want performance from the Hurd, run it in a qemu VM so it profits from the caching algorithms of the Linux host. Then performance is actually pretty good — and you still gain most of the advantages of using the Hurd as OS.

No, it has an initialisation server (helpfully called init): https://www.debian.org/ports/hurd/hurd-doc-server#init

I'm curious to know what made you wonder whether it did, and whether you would consider that a positive or a negative (and why).