Maintenance strategy of SAP for SEM-BCS is still not clear. This has already been discussed but various related threads do not agree and are maybe not up to date.
Latest information I get is that SEM-BCS enters in maintenance mode through 2011, with premium extended maintenance through 2013.
Besides this EC-CS is part of SEP-ERP and is then maintained till end 2017 (note 1223308). This is quite confusing as BCS has many advantages on EC-CS...
Am I wrong somewhere?