It can be found among other roadmaps and other innovations in section findinnovations on service Marketplace ( http://service.sap.com/public/findinnovation ) which also can be accessed from SAP Service Marketplace start page choosing Improvements & Innovations in the top menue. Beside Roadmaps this section informs about improvements and innovations within the SAP Business Suite and active and upcoming Ramp Ups. SAP Ramp-Up is SAP's early adoption program for customers that want to go live with SAP’s software innovations as soon as possible. Regarding Business Suite improvements you can
Search for new functions, using a self-service providing customers with innovations tailored to their business as well as comprehensive business and technical information.
Find businessfunctions and features delivered with support notes or support packages, delivered with enhancement packages or new releases or by functional area within the enhancement packages for ERP, SRM, CRM, SCM and PLM
Get recommendations which business functions in enhancement packages for SAP ERP are relevant for your business and which business scenarios can be optimized with SAP Business Suite powered by SAP HANA
As you can see it is the location for everybody who wants to get information about SAP innovations.