Again, I'd argue we still know a lot of these things for the Potter ride too.
Type of ride - coaster
Theme - Potter (no more/less detailed than "Mario Kart" or "Donkey Kong")
Possible layouts - we don't have this for Nintendo rides
Location - Dragon Challenge Plot
Artwork - Not a leak, at least not a leak in the final form. The final, actual artwork we have for Nintendo that represents the project as it will be built comes straight from Universal
Where are these leaked layouts you speak of? Asking for a friend