They have been teasing this all week but finally we got the answer.
Morning Musume are going to Guam! For their next Hulu Special.
Hulu NewsObviously, considering Kitagawa is there, this was filmed well in advance of her suspension of duties.

It will be a 5 day event, June 13, 20 and 27th and July 4 and 11th.
25 years have passed since "Heaven or Hell? Red, Blue, and Yellow: The Great Battle in Hawaii," which produced many memorable scenes...this time, Morning Musume '25 will be battling in Guam!
The members are divided into red and white teams and battle it out in six competitions:
-English Conversation Quiz
-Dinner Ranking Check
-Waking Up Surprise Quiz
-Beach Flag Multiple Choice Quiz
-Chamorro Dance Musical Chairs Game
-Beach Obstacle Relay
The winning team will be filmed on location in heaven! However, for the losing team... What on earth awaits you? Look forward to it!
Also, on the last night in Guam, they shared memories with Ikuta Erina, who will be graduating in July 2025.