Hehe, I love how Stitch calls it "Stitch Kingdom" on the Monorail shpiel
Aaaanyway, ya'll need to stop actin' foolish and grow up. Just because Monsters Inc. is coming to Tomorrowland does NOT mean it is anything LIKE Pixarland or whatever the such. And since when does the exact THEME have to do with "Tomorrowland?" You yourself mentioned Indy Speedway, which has been there FOREVER, and hasn't changed other than them changing the billboards in the back. That's not going anywhere, so get over it.
And when Delta Airlines was in Tomorrowland (where Buzz is now) Airplanes were not futuristic. They didn't have much to do with tomorrowland at all, other than hinting at the future of air travel. THAT is what Tomorrowland is about. It is about the plans for the future, and brand new TECHNOLOGY.
Before there was Stitch or Alien Encounter, or even "Mission to Mars" there was "Mission to the Moon" which was about people looking at a circular disk on the ground that showed them what the surface of the moon looks like. That has to do with outerspace, and that was their "tomorrow". their "tomorrow" was Outer Space. (This is important, remember those two words.) Later came Mission to Mars (What? More Space Travel? Gosh, it seems this is actually making sense...), which was basically the same thing. Then Alien Encounter, which was a brand new type of experience that has never been recreated anywhere else! And it just so happened to deal with an Alien.
You now have Buzz Lightyear and Stitch, which both have to do with OUTERSPACE and ALIENS (seeing a theme, here?) and both of them present new technology and fun. Stitch is a one of a kind creature who's arms and eyes and even the spikes on his back MOVE. He's a brand new type of animatronic. THAT is the future of Technology.
Carousel of Progress shows us the way technology has "PROGRESSED" through time, and what we look for in the future.
Now, on to my final and last point. MONSTERS INC.: THE LAUGH FLOOR is a brand new technology that they are using and experimenting with (cough cough Turtle Talk) to allow children and teens and adults alike to actually TALK and LAUGH with an animated creature. THIS is the future and PROGRESS of technology.
Do you understand "New Tomorrowland" now? It has nothing to do with the fact that Pixar is there, it simply has to do with the progress of technology, and PRESENTING that progress through fun attractions. Just because Pixar's movies have been more successful than Disney's because of Eisner's FAILURE to realize that the Animation Studio needed more attention, doesn't mean that Pixar is NOT a part of Disney. They are full well a part of Disney and have every right to be in the parks and present their progress in technology through their animated characters.
So chill out, think it out, and FIGURE IT OUT before you and all the other people out there who seem to think they've got a strong argument against Pixar and this new Monsters Inc. attraction start blasting about your metaphors on "Pixarland" and "Disney/Pixar Studios"