Super Nintendo World seems set to become the first area in Universal Studios Japan to have two levels to it, seemingly recreating the park as shown in the original promotional trailer. [Thanks, @LCASTUDIOS_USJ on Twitter!]
Currently, a higher floor has been created, leading up to the area where the main part of Super Nintendo World will be. It seems that visitors will enter the area on the second floor
Super Nintendo World is currently on track to open by the 2020 Olympic Games in japan.