I really think this is a wonderful idea. Though, since I now live on the West coast, I will probably have to check out the attraction on my first visit to Disneyland.
But anyway, it is a Pixar ride where Pixar belongs.
Tommorowland shouldn't be Pixarland. Animation BLVD should be Pixarland. I mean you got the now downgraded animation tour. And then you got Little Mermaid and the Kid Cartoon show. But past those attractions, the park becomes a barren corridoor that was obviously not meant to be a Theme Park.
The tours never helped, and neither did Millionaire, and with both closed, that area of the park isn't pretty at all to go through.
Now lets go to the first simple reason why this attraction is totally wonderful (DCA has its own list of reasons, but I'm not going into that.)
But first of all, the attraction has a facade. You might now realise how important that is. But in such a bland cooridor, it will do wonders. And that leads to guest flow. The park's 2 big attractions are in the same area. Toy Story Mania adds a huge new place for guests to gather around, and a place I imagine with pretty low foot traffic, so I bet there will be no bottlenecks.
And again with the Toystory Midway theme. It is like somebody put two and two together. It is a good Toy Story attraction idea. (Better than the plastic alien flying saucers idea, and generally better than almost every Pixar themed attraction done before.) The fits perfectly in both DCA and Disney/MGM studios as its theme allows compatability for both. The fact that Toy Story is such a landmark animated film will too add to the timelessness of the attraction. As long as they got good processing power behind the games and good animators working on the attractions.
The attraction too envelopes what Disneyquest was all about and trying to do. Interactive attractions and everything. It will be fun, even if Disney never delivers on the promise of updating the attractions. (WDW attractions are almost never plussed, so I really doubt any updates, but to install a new file is a lot easier than rebuilding anamatronics.)
And finally, WDW's version is probably heck a lot cheaper than the DCA version. Though there is construction going on, WDW has the luck of having the ride being built in a real soundstage.
So I think the general idea is great and not only is a Theme Park innovation, but a videogame innovation in general. But that more or less has to do with the idea of getting more non-gamers into the market.