That would actually make sense. It'd be a combo-punch of Third Party, if done correctly; and would even be an excuse to maybe shed light on a title for that Illumination film.
Nintendo at CityWalk Hollywood, would be huge. For the LA area, this may actually be very beneficial, as it could serve as a form of fan-hub for those wanting to watch Nintendo Directs, or professional events alongside major moments (such as a game launch, or E3). It'd be a win for Nintendo, especially on proximity, and a win for Universal; as it introduces the landmark IP in a large way.