Not going to quote anyone ....
My thoughts ~ I'm excited and I'm not even really a Cars movie fan. The rendering looks awesome with a "complete" land in play not just a single attraction.
Frontierland has been nothing but a sidewalk to get from the Hub to Tiana and Big Thunder (and a couple restaurants and some singing bears good for AC). It is seating for the parade. But it's story has long been lost, it has no purpose. For a decade there have been rumblings inside what will happen. The only way to deal with it is (1) completely retheme it OR (2) EXPAND it. I am shocked but so pleased that Disney is finally making a big bold move.
Losses ~ barely used island that is only open about half of Disney hours. They have never added, only removed from it. With all the lines the last place I'm going to waste an hour of my time is TSI. A riverboat ride which is a great slow way to chill but has limited hours and limited sailings. I had not been on in a decade and DS asked to ride a couple years ago. We did. I was kinda shocked at some of the scenery, do we really need a cremation scene?
Disney gains tons of land to create a cash generating space that folks of all age can enjoy, children will love and Frontierland is now connected by more than long walkways. This is win/win for Disney and guests.
SO folks like the tranquility for a break ... this is a theme/amusement park. Go out to the lake or back to your hotel or visit another hotel for that. I pay money to be entertained, not to stare at water or wander through woods. Hey take the boat to Ft Wilderness and enjoy. Even in the park there are quieter and relaxing spots. I know because DS needs to decompress at times.
Folks say why existing land why not just use all the empty land ........... that is very very complicated. To disrupt land Disney has to first go through the approval of the S FL Water Management and when they do that it involves months maybe a year of all kinds of environmental testing. Then they have to offset the same amount of land to offer water shed. This is why Disney owns a large nature conservation area south of Kissimmee and add to it so they can disrupt other land. The "river" is a ride, not a river. It has a concrete bottom and is the boat's version of a water park. No approval is likely needed at that top level. They can move right in to the demo and construction permits, at least for Carsland.
Haunted Mansion ~ my home away from home. Not worried. They will build berms, plantings and it will be hidden from Cars and visa versa. Rendering shows a path from Liberty Square (next to riverboat building) heading in with lots of trees on either side that will buffer.
Riverboat ~ hoping Disney uses it for Fireworks Parties, private sailing parties and maybe even weddings.
Villains, more complicated ground wise and hopefully they start that process soon. Of course I'm all in for Villains!