How much do voice actors make? I’ll bet Groening would love to replace the people who do the Simpsons voices with a bunch of interns, since he’s a “compassionate” liberal.
If you took the original voices of the Simpsons away...the series would die within a year. The thing about it....they make millions off the series and can afford to pay a pretty fair amount of money for the guys who do the voices. Why would you screw up a good thing?
As for Futurama? I’m betting it dissolves away within twelve months. No one will buy the last season in DVD form....and it’ll be one of those things....best forgotten.
This reminds me (in a way) of when the animation and appearance of Dexter’s Lab changed for the worse a few years back.