Although I already realized how important X-Japan is in Jrock history by the things mentioned in this threat...let's remember that L'Arc~en~Ciel is a HUGE influence in j-music as well...even when they are still called visual-kei more than one had admitted to feel admiration and the wish to make a song with them.

And let's remember that maybe the success in VAMPS last year tour in the US motivated some other bands to come to America as well [I've read rumors about KAT-TUN going to LA this year as well]. And the fact that in Japan when they talk either HYDE or VAMPS they always have space to mention 'when they went to the USA', so I think they opened the door to see more Japanese performers touring in America soon...

In the end, because of this influence I believe that ANY other act planning to perform in the US should check if someone will be there on the same dates...at least as a sign of respect towards the one who dared to come FIRST and is bold enough to do it again.