Okay, so most people here should be familiar with my love of Motoi Sakuraba's music. I like to check his website's discography page every now and then, but mostly because it has a bit of a habit of leaking games Sakuraba is working on before they're announced.
So I'm looking at the page a few days ago and I see this:
Mario Golf: Toadstool Tour (GC, Wii)
It actually didn't sink in at first. I initially thought that listing was odd but didn't give much thought to it. Then it hit me - Mario Golf hasn't been ported over to the Wii yet. It makes absolute sense as a NPC title, though.
So I'm pretty sure this is a leak of what's to come. Not a big deal, but I remember a few people clamoring for a NPC of Toadstool Tour so this bit of news should put a smile on their faces.