Some news on Nintendo Land for Japan, but I assume applies to the States as well
Instead of linking each tweet I'll just give the twitter handle to the person I'm getting this from:
https://twitter.com/FarmboyinJapan
Keep in mind, I believe this guy is translating from a different source, so always possible for some errors.
Tweet 1: According to Mainichi Shinbun, the head of Universal Studios Japan says the Mario area will "exceed" Harry Potter.
Tweet 2: The head of Universal Studios Japan also says that not just Mario, but "many" of Nintendo's IPs are under consideration for the theme park.
Tweet 3: Reaffirms the previous statement that the Nintendo area of Universal Studios Japan will be open by the 2020 Olympics.
Tweet 4: While it took $400 million to build the Harry Potter area at Universal Studios Japan, Nintendo Land may cost "beyond $500 million".
Tweet 5: MULTIPLE attractions/restaurants/stores are being jointly developed between Nintendo and Universal Studios Japan.
Tweet 6: Looking like there is a possibility that Nintendo Land will be "officially announced" (unveiled?) to the public sometime before year's end. (I think this tweet is more speculation as opposed to his translations)