More customized Public Phase Dynamic Content for Email Template use.

Came across an oversight during a process design and I think it would be a great idea for Email Templates to be able to reference a dynamic content for a parent card public phase or a specific card public phase.

ie.:
Currently we have available {{card.current_phase_public_link}}.

I think it would be awesome to use something like {{parent_card.current_phase_public_link}} or {{card889092514.current_phase_public_link}}.