No.
I never would have expected that to be my knee-jerk reaction, but I guess some selfish part of me doesn't want to share her with mainstream America. I guess I actually really like adoring her from afar. I would never want Ayu to get involved in...well, essentially in the American music industry. There isn't a lot to like in its structure, and what happens to people involved in it.
I'm surprised that I'm saying this, though, because I would love to see Ayu live, and plan to one day. I just want to have to fly to Asia to do it. I guess it is really selfish of me, but considering that just about everyone I know (at least, my friends who aren't from Asian countries) has never heard of Ayumi Hamasaki, I want to keep her to myself, my own sort of "secret" love.
EDIT: Also, Ayu singing all in English = no.
EDIT 2: It's looking like this is fake, so until there's an official proclamation, I'm going to
cover my ears and say, "LALALALALALA!" chock it up to tabloid fantasy.