That was great read and nice find. As for the other actors not reprising their roles as much as possible, I believe it has to do with some of the actors not being asked to do given some of the continuation projects have been less high-profile a la television and the budgets for the television series (
Timon and Pumbaa series,
The Lion Guard) couldn't afford a high-profile star as some of the original actors were. There's also the issue of the
lack of availability which is why Rowan Atkinson didn't return to voice Zazu for the sequels. I still, for the life of me, don't understand why the producers couldn't get Moira Kelly back for Nala. I assume they wanted more star power so they got Gabrielle Union, who is just as good in the role as Moira was.