Today the SUSE Studio team has added support for SUSE Linux Enterprise 12 to our publicly hosted SUSE Studio instance as a technology preview.
You can start with a SLE 12 version or upgrade your existing SLES 11 SP 3 templates. Studio supports all features of SUSE Linux Enterprise 12 including the new modules which offer a choice of supplemental packages, ranging from tools for Web Development and Scripting, through a Cloud Management module.
Remember this is a Technology Preview. Currently, building Azure or EC2 images is not possible.