There's some additional info on the offcial event page of the tour:
https://rhythmzone.net/koda/live/tour.php?id=1001369
※本ツアーは追加公演の予定は御座いません。
*There are no additional dates planned for this tour.
※10月24日（木）宮城公演が「Black Cherry」の千秋楽になります。
※10月25日（金）宮城公演が「JAPONESQUE」の千秋楽になります。
*10/24 will be the final performance for Black Cherry.
*10/25 will be the final performance for JAPONESQUE.
Which basically says they have other plans afterwards and no matter how popular, there will be no additions.