It's something that some people are attempting to extrapolate from the following excerpt-
The article mentions there being cutouts of Louis and Tiana around these turns, and people are thinking that they're going to be more spread out than the piece of art. And that there won't be any other figures other than these single ones within these scenes.
I would personally hold off on the assumption about sparse scenes. It seems like only the major PATF characters had temporary cutouts placed, probably because they are central main characters and will also be the most advanced figures in those scenes. There's no mention of the other critter AA's having cutouts. Either because they didn't have them, or because the author didn't mention them and chose to focus on the known PATF characters. Doesn't mean there won't be a number of other critters in these scenes alongside the major ones though.
The model of Tiana seen in Archive's leaked renders had her in a yellow dress, assuming that's what they use. Not her waitress outfit, seems like some sort of evening gown.