Asking for a deep multilayered plot is another thing people are going to disagree with. That's not really the point of these games at all.
Are you asking them to voice hundreds of unique villagers, and then use the classic digital voice for unvoiced lines? that's an extreme contrast and there's 0 chance of Nintendo using "Hollywood voice actors".
But why? How would adding a deep, multilayered story campaign, with Hollywood actors doing the voice acting, take anything away from the original experience? For the basic mode, you could have an option to turn off the voices of Danny Glover, Meg Ryan etc etc and go back to the standard voices. It would certainly add some spice to the series!
However, the poll is very against the idea so I'll let the dream die.