Although the concert information page reads that the lottery is still "in preparation," my friend told me that the telephone lines to check results is OPEN.
Again, seating is still unknown but tickets are already on sale at sites like ticket.co.jp
Prices are starting from 69000 yen and tickets for the last concert are going into the 100000-200000s of yen... D:
[If you have questions about buying tickets, please read this guide first.]