According to the Wiki, there is a official one on the way.
If you can't wait, dist-upgrade one and build a new template yourself? I did it last week and to get a working non-systemd is very easy. The problem here is that the init-System changed and the hack-Scripts in /etc/init.d have to be ported to system to work properly. If you want systemd, you still have to wait a little bit.
be very careful when you upgrade debian 7 to 8. The upgrade may or may not switch to systemd. You can always remove the Poettering-crap later on, but you might get it on your system and weird init systems tend to cause problems with openvz (Upstart didnt work at all when it was new).