Ok, and we now come into a bit of a snag, allow me to explain:
most of the cartoons you mentioned had a far smaller lifespan than you may even realize. That lifespan was one decade: the '60s; then they were brought back a couple of times, never exactly to the same rousing success as before. Probably the only real exception to this was Secret Squirrel.
The thing is Secret Squirrel was dramatically improved. I don't see how this could really be done to any of the other Hanna Barbera characters without altering them to the point beyond recognition, and to the point where they'd no longer really seem like what you knew growing up.
I mean...Yogi Bear and Boo Boo steal picnic baskets; could one honestly make that even remotely interesting anymore to younger viewers?
And Huckleberry Hound...oh god....that guy would never survive now.
Snagglepuss...do you really want me to go there?
Honestly?
And y'know...worth noting about the Looney Tunes cast: I was watching an episode on Youtube last night called Wideo Wabbit; I'd never seen it before and it seemed like it might be interesting.
I ran into a major problem that the Looney Tunes really have at this point: they mostly thrived during a time of social unrest unlike anything we're used to today. A lot of the jokes they were doing back then really pushed the envelope: one of the jokes that was made in the episode was so risque, it would've made the Honeymooners blush, and I'm even surprised it made it past the censors. However, the comedy that was still considered acceptable back then was based on a lot of societal faux pax that modern audiences really wouldn't understand.
Would they really understand half the references to Humphrey Bogart, the Marx Brothers, WC Fields, and Sinatra? I highly doubt it. Al Jolson? Oh yeah....sure.
Just remember....our parents and grandparents could tell us what they were making fun of in these cartoons....we don't exactly have that same luxury with our own future kids & grandkids cause it was
at least 30 years before our time.
And then, when they did new shorts with the Looney Tunes involving modern day acceptable humor, I have really yet to hear any positive feedback about it.
Basically, the old stuff is--while extremely hilariously offensive and risque--extremely dated, and the new stuff is apparently bland beyond belief.