Looking back at Super Nintendo World's current 3D concepts something has intrigued me; and that it looks to be, of Super Nintendo World's two levels.
Now do keep in mind, this is a bit of a crackpot, but this is something I am looking at from an artistic perspective. And as such, I can be extremely wrong, and it's just a few things. But it's something I wanted to point out.
And to clarify, I will use these two for example.
As you can see, this represents a few things as seen, but with some dissecting; I think I may of gotten a better understanding of what seems to be the layout that is seemingly right now in place for Osaka.
As you can see, the upper level has two ways to go down, one in-front of the Peach Castle seen in the visuals; and one next to the Giant block-y mountain. From what it seems like, the upper level contains the entrance for Mario Kart, the mega E-Ticket, which has been said in past to be at Bowser's Castle, and what it looks to be of Yoshi's (to represent a possible ride path for the Yoshi attraction), and that from what it seems like; five piranha plants.
Although, from what it looks like on the upper and lower levels, there is a bridge, being used for Yoshi and en-turn, being used as a way to transition to a different part of the land. A part, that seems to be using jungle plants.
@Haru brought up in the past that there are rumors of Donkey Kong being used. If I was to bet, the use of the jungle plants in the first photo, isn't a coincidence. And that they may be squeezing up the land for Osaka to add a third attraction, ontop of the Mario Kart and Yoshi based attractions.
Keeping in mind, that this is merely crackpot. But it's crackpot that I am honestly starting to wonder may pan out that way for Nintendo World in Osaka. And that it's just a theory all considered, but it's something that I am not going to be shocked is true.