I must say that this thought was in the back of my mind when I first read the news about her impairment.
Because I really wanted to save up to go to Japan for one of her concerts as well and see her live or something but that wouldn't be till 2009-2010 or so... and so I was afraid that she might stop singing by then.
I do think that that I was kind of selfish of myself though... rather, I want her to do what she thinks is best for herself and if that ends up with her going on and singing then awesome, if she decides to cool down or stop, then I'm fine with that too =]
I can't help but want to see her perform in person at least once though