Hi Siokan,
I think the tour has already started, according to various websites:
"It has also been decided that the group will be going on a nationwide tour and perform a total of 44 concerts in 14 different regions. The first concert is going to take place at Zepp Osaka on January 22nd. On April 10th they are even going to perform at the Nakano Sunplaza."
But this is the only information I can find on the whole internet, so it is a bit strange
MidnightSun