Can AWS IoT add a new lifecycle event for PING response?

Currently AWS IoT supports lifecycle events for connected/disconnected/subscribed/unsubscribed.

I'd like to be able to plug a lambda function into the PING response sent by a client keep-alive, in order to progressively delay the TTL set in my application's Session record for that connection (dynamodb).

Currently there is no way that I'm aware of to natively handle this with lambda in the same way I can other lifecycle events, as the PING response isn't available to use as an IoT topic rule.

Is there a way to do this or can this be added as a new optional lifecycle event?

Thanks