I would love for them to have a model, but I honestly think its just some images with the land as a backdrop. I see no reason for Universal having to reveal any lands outside of Nintendo. The simple news of confirmation of the park + hotels + CityWalk 2.0 is more than enough from a news standpoint.
Would we want all the details? Sure, but Universal has no reason not to breadcrumb that out and build more hype longterm.