Does anyone know if there are plans to support
CSA version 6 to handle Anti virus
a newer version of Trend micro Office Scan
Current supported version is 7.3 which is EOL by Trend Micro
I doubt it. This product has transitioned to the Linux-based appliance model in 8.0. There isn't a whole lot of testing/development going on with the Windows-based OS model any more. You would need to ask your Cisco Account Manager for an official answer though.