It's fine. Whatever it is, she spent most of her hiatus preparing for it:
(Though she said it'd be on the 30th, not the 31st. I got the dates mixed up with when she'll be meeting with her SF6 team. Edited to fix)
The thumbnail image also translates to "Important Announcement. Everyone, please lend me your strength." She even translated the description for English fans:
View attachment 74714
The Botan discord was thinking it might be a Guinness world record attempt since she brought it up a few times over the year.
She'll also be back on the SF6 grind in 40 minutes: