[QUOTE=Geoffrey Carman;22235]… Wicked, install tweaks, KVM/Xen enhancements seem like the
issues people must be talking about then, as being a big change from SLE 11.[/QUOTE]
I haven’t been following the developments with SLE12 that closely these last months (too much other stuff keeping me from delving in). But there are enough things going on I find quite exhilarating with this new version release. And I look forward to hear all about it!
A couple of things from the top of my head:
-The switch to systemd is also one that will take some getting used to for allot of SLES admins (one of many blogs on the matter: https://www.suse.com/communities/conversations/systemd-is-not-about-systeme-d/).
-Btrfs, as it has evolved and matured further, will be the default filesystem for the root partition. This will give the system very versatile rollback options.
-Docker (further leveraging Linux Containers) officially finds it way into SLES with this next version : https://www.suse.com/communities/conversations/welcome-docker-to-suse-linux-enterprise-server/
-Then there is “stuff”, which is not directly tied to the SLE12 release, but is likely to find it’s way into it, like “kernel live patching”, aka kGraft (https://www.suse.com/communities/conversations/kgraft-live-kernel-patching/).
-Lots of good stuff going on around the OpenStack project which just keeps getting more and more traction (which SUSE bundles as an easy to install & upgrade distro with SUSE Cloud).
…and much more around all that.
There just seems to be allot happening around SUSE (and Linux in general) this last year. 
Cheers,
Willem