Just for fun, here's the Disneyland Alice/Toad/Pan building plot laid over the Indy Speedway - to scale, of course.
The whole complex is highlighted Pink for clarity - Pan's share of the building is outlined Red, Toad's outlined Orange, and Alice's outlined Purple (worth noting that Alice is 2 stories - at points it travels over top of Mr. Toad, and at others over its own ride path):
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I also outlined WDW's Pooh in Blue, which USED to be the Mr. Toad building. You can see how much larger it is than DL's Toad building - but then, WDW's Toad had two separate ride tracks where DL's only has one.
The bolded areas are the rides respective entrances. Alice's facade faces away from the Pan and Toad side of the building - in theory, if you gave that space over to something Tomorrowland-y, you *could* have the Alice side face the Teacups and still transition from it before reaching the entrance to the other attraction.
Now, it's also worth mentioning that these DL rides are
tiiiiny . . . Built in the mid-to-late 50's, Disney basically *can't* build anything this size anymore and get away with it, if only for the lack of access for emergencies (not to mention the sheer creative power it takes to do so much in so little space - Alice wasn't built on top of Toad because they just FELT like it). The layouts of these DL dark rides are genius, but can't just be replicated without serious modifications because of new regulations).
That said, the Speedyway plot clearly offers enough space to expand everything outward in a way that would be suitable. If they really wanted, there's basically no *real* reason you couldn't build an Alice ride in the
style of the DL attraction that meets today's codes and uses more space, and have it adjoin to another building of whatever size and shape that features its own Tomorrowland attraction. You could do that and still have plenty of space left on the Speedway plot for something else.
Not that I think Disney's looking to do ANY of this, but it's fun to think about.