We don’t know if it will be more than what was broadcast live.
Due to Typhoon Krosa, Mountain Stage Sets (including BABYMETAL’s) are Expected to be Delayed/Cancelled at Summer Sonic Osaka [UPDATE: set delayed 30 minutes, but will play]
They were supposed to play at 6:50PM, they have not announced the new time yet. It is looking possible they may not even play.
BABYMETAL is NOT On The List of Artists That Will Be Streamed From Summer Sonic [MAJOR UPDATE: THEY ARE NOW ON THE LIST!!]
Fans have achieved their goal and BABYMETAL is now on the list of artists to be streamed!
It’s a world-wide stream! BABYMETAL’s stage will be broadcast, but no mention of them specifically.
Timetables for Summer Sonic released; BABYMETAL starts at 18:50 in Osaka and 19:00 in Tokyo on the Mountain Stage
They also published the festival maps, official merch, and final full lineup.
BABYMETAL plays Osaka on Friday, August 16th, and Tokyo on Saturday, August 17th, both at the Mountain Stage.