Joyful Train in Tohoku Area

I read the joyful train information from jreast website and i really interest in many joyful train route.

However, some train has timetable till November only. So, i need your help to clarify my doubt otherwise i can't arrange the trip properly. My questions are :

1. Does Resort Shirakami operare in December?
The timetable show till November only and also i found out that some part of the route between Aomori and Akita has closed due to restoration construction.

2. Does Resort Asunaro and Sanriku Train Miyako operate in December?
The timetable show till November only.

Many thanks in advance for your kind support.

It seems that the dates beyond November have not been published yet.

Operating days for JR East's joyful trains are only shown 3 months in advance. Hence to November for now.

Correct Uji, that is why i concern that this train operate in December or not. When the timetable publish?

I believe that the December operation dates are usually announced around October 20.

Many thanks H for useful info.

Also Many thanks old friend, Uji.

An announcement was made:
https://www.jreast.co.jp/press/2022/20221021_ho01.pdf

Resort Asunaro operates December 3 and 4
Sanriku Train Miyako operates on December 2, 3, 5 and 6

No dates for Resort Shirakami were added at this point.

Many thanks for the valuable info. Do you have English version?

I can't find an English version. Google Translate can translate PDF files to be used on your own risk.