For her tenth year, she should really go all out to the best of her abilities. Let's not forget she IS deaf in one ear, and she will be doing another ASIA tour, so we need to make sure she doesn't overexert herself this year. I think may be special collaborations (like how Morning Musume reassembled for a 10 year unit), such as with Tsunku (terrible singer, but the one that jump started her career) again, or with KEIKO (her admired artist). Another thing she can do is re-record or re-release another best single/album, with more special remixes (the choir and strings don't sound too bad for something like "No way to say" or "M") and unreleased instrumentals. However, it would be nice if she did do a special thing on her day (April... 20th?), like a performance or whatever.