SUSE Studio and Open Build Service are merging. This is the new home for building openSUSE and SUSE Linux Enterprise images.
For building an image starting with a template check out: https://build.opensuse.org/image_templates.
If you would like to add additional image templates, see the instructions: http://openbuildservice.org/help/manuals/obs-reference-guide/cha.obs.image_templates.html
The development of Studio Express is ongoing. Follow the reports from the engineering team at: http://openbuildservice.org/blog/
There’s also a blog (https://www.suse.com/communities/blog/suse-studio-online-open-build-service-suse-studio-express/) with more details.