a batman: TAS thought

[archersangel]

with ra's al ghul often mentioning that he's lived for over 600 years you could have an animated series called the lives of ra's al ghul. 

most episodes could start with some situation that reminds him of something in the past & the flashback starts with him narrating. maybe the overall series plot could be him searching for some artifact he had but somehow lost or stolen from him. with an occasional appearance by batman.