About his voice, I think it's his effect 'cause in Hoshi wo mezashite and lately released NEWS's songs, his voice is not that hoarse, indeed it's very smooth.That was what made me less worry but now hearing him caught a cold, it's worse.But what is more important is his mind.There might be something bother him.
The "mini" which you mentioned, was that "mini Molte", it's what I heard the rabbit girl saying, wonder if I heard right.Have you see the poster yet?