I don't think it has the same impact as films where it is much easier for families to enjoy together, and take that enjoyment to the parks. To keep some kind of relevance to today's kids they are going to have to use Pokemon etc, which while most parents know what it is, they won't be picking up their kid's 3DS to play it.
I guess this all just based on my gut feel. The announcement has not excited me anywhere near as much as Kong, I prefer the film IPs that make you feel like you are in the films, witnessing the action and adventure. I've already written Nintendo off in my head as a Kids area in the parks that I'll walk by, admire because it looks pretty, and leave it at that.