A wild Success appeared!
If they build Nintendo Land on a WWoHP level of quality, I think it will be their most popular land ever. I certainly think it'll top Potter. And will rival Star Wars Land.
And OLC's coming additions are looking more and more plain necessary, because when Nintendo Land comes to Japan... Well, I know the Japanese have a different perception of theme parks, seeing theme parks as inferior to video games. Regardless, I strongly suspect that it will be a wild success.
Competition is good because it forces both sides to, well, compete. Universal has pushed Disney to build new rides in Orlando, and hopefully they're about to do the same in Japan. And subsequently Disney pushes Universal to build. And the cycle continues. And that's a good cycle.