Why do I think this? Because everyone has been talking about it! Twice this year I heard my local radio station talking about Nintendo this year! First time was about Pokemon GO!
The second time was about Universal/Nintendo Partnership! And I think that because everyone has been waiting for this and they were talking about it even more than the Nintendo Switch reveal! So I think that the reason why Reggie, the president of Nintendo of America is going to Jimmy Fallon, is to talk about plans about Universal/Nintendo!
Discussion started at here by Sniperninja564