I think the most important thing is having community in these places, and that’s where Reps play a key role creating and building them.
As an example, some African Reps are helping mozillians in other countries to create an initial mozilla community there.
I expect from these new people we will see some leadership examples that will be interested in become a Rep eventually, but the process should be like:
Mozillians-> New community -> Experience -> Leadership -> Reps
(and not the other way around).