It'll be funny seeing Milka no longer being 'of the Soviet Union' and I'm willing to bet that they won't figure out a good way to make 'Heart' be a power actually worth a damn without it becoming a form of Mind Control.
Seriously though, if you're gonna pick cartoons to revive from that era, then bring back ExoSquad!!! That show had TWICE more educational value than Captian Planet ever did, from things like racism, oppression, some actual military forethought...its depth was certainly moreso worth exploring with a revivification these days. Heck it could still work, with us exploiting our own resources to the point we'll have to start mining planets of our solar system eventually and which poor sods will we have for *that* shitty job?
If that kind of strife, leading from our own consumption of natural resources and exploitation of minorities, isn't an educational message for the generations to follow, I don't know what is.