In KH1, Pongo and the Dalmations were a sidequest.  Does this mean that they would have to recognize Sora and the gang when they visit the Dalmation's world (sort of like they did with Simba and Mushu)?  Or, since they were just a side quest, they will show any recognition of Sora?  Also, would Sora and the gang's form change like in the Pride Lands?

That's a good idea.  Maybe Nomura has considered such a concept, and I don't think it's too far fetched, so yeah, this has my thumbs up.

Cheap side quest idea.

Pretty unlikely ,but it's not impossible . 

We all know its coming (a 101 dalmations world), but we do not know if it will be KH3 or a future title.

Like that idea

 

And I always thought that with Simba knowing Sora was a mistake because pride Lands was supose to be in kh1.

I don't know how a whole world for them would work maybe a sidequest again? To be fair I haven't seen the film in along time so I don't really remember much about it. 

I do not want it to be a side quest.  It SHOULD NOT BE A SIDE QUEST.  Cruella de Ville is the biggest Disney Villian not to appear yet in Kingdom Hearts, and a side quest would ruin her appearance.