First of all,
http://www.xjapan.ne.jp/ has a new design! Check it out!
Second, there are two new dates announced on the webpage- 18th January in Hong Kong and 15th February in Taiwan.
Thirdly, there is a rumor, that the countdown live will be broadcast on Fuji TV. There should be a newspaper article about it tomorrow.
And fourthly, X Japan official street team starts- you can register on X Japan's official webpage. At the moment everything is Japanese, but an English version of the webpage should follow soon. We will post more info as it becomes available.
Sources:
X Japan official webpage and
MetalBanzai