What's the deal with components in CF getting CNCF-friendly replacements in CF-for-K8s? The repo points out that Istio, envoy, kpack and fluentd are in the mix.

Presumably kpack is replacing traditional staging? And is fluentd replacing Loggregator, or supplementing it?

Has there been any discussion of what this means for maintaining feature parity between CF4BOSH and CF4K8s, and for technical certification of CF platforms?