About halfway through the movie if anyone actually looked over at John and Katie they would see a five foot animated Nick Wilde and a five foot animated Judy Hopps.
As John looked over at Katie (not noticing anything different about her) and watched her body shrink down to the height of three feet (including ears) while he also had shrunk down to the height of four feet. After this had happened load of information started flowing through their heads for Jo(Nick) he was starting to remember things that he didn’t before like his friend Finnick who helped him out in Cons and Flash who worked at the DMV. While Kat(Judy) was remembering her life on the carrot farm and moving to Zootopia. If anyone had looked over at them now they would see a real Nick Wilde and Judy Hopps sitting in their seats.