Your question one on 6400 to Viprion or version 10 to 11? The former is much more straightforward than the latter, which changed the HA. Let me assume you are staying on the same version and doing a platform migration. The config should come through just fine, your HA config would be setup the same but you probably have to reestablish device trust.. absolutely necessary if you change the management IP addresses on the new boxes (gotcha).
Then it would be a change to the network interfaces. These are no longer done on the guests they are on the chassis... edit them out of your configurations and then define your interfaces and VLANs and trunks on the chassis/host, and assign the ones to the guests as needed for the guest. slick.