Miroku will be added to the Altar of Remembrance this month
Kaiser/Zane will get 5 more difficulty levels in October.
Miroku will add 5ex armor.

If you've been following the tower of luna and main story, you'd probably guess it was coming to a close soon and indeed it will in October.
It was probably meant to be replaced by the new Dragon's Charge content which was postponed in 2026 winter.

From thereon, Tower of Luna will become a permanent content you can do at any time, no more need to wait a specific week of the month. Great for newbies or returnees.