Jees, seems I'm as lame as ever!!! I nearly missed such a wonderful piece of news - MinaJun's having her 5th Maxi single released on 24/01/07. It's called "Shout it Loud" and here's the track list:
1.SHOUT IT LOUD
2.Sign
3.Yasashii kimochi
4.SHOUT IT LOUD(instrumental)
5.Sign(instrumental)
6.Yasashii kimochi (instrumental)
and of course the cover (though very small):