SUSE SLES12 for SAP SP3 has been released for SAPHANA SPS12 (122.15+) and #HANA2 SPS02 (23+).
SAP notes 2205917 and 2235581.
Be careful SLES12 for SAP SP1 is running of general maintenance end of May 2018!
HANA2 SPS1 (10-12.04) is also running out of maintenance in April 2018!