Wanted to check if APIC EM supports 6807/6500 with SUP 2T as now. I
You can see in the release notes: Table 1 - Supported Switches how the 6500 and the 6800 with the Sup2T are supported. Bear in mind of the recommended software version.
APIC-EM release notes:
In the datasheet (table 2) of the platform it is referred as Catalyst 6800 Series Switches, so I believe they are supported.