Yes, but Arthuro, you remember the articles during the long time no see tour. Both said they wanted to be more known in the world, and release english songs.
Into the beginning means to me: this is the beginning of a new career, an international career. It is today the only one thing B'z is missing.
I don't think it has to do with the tsunami. The video begins with "B'z 2011" and end with "B'z 2012 Into the Beginning". So this message is about B'z and just B'z, but I can be wrong and I would be very sorry if they just release an album in Japan with english songs...