I think the bonus DVD might include footage from the Osaka concert as both Fukuoka and Tokyo have region specific songs, that logic might carry over to the Osaka concert as well.exactly ^-^ not confirmed yet (the 2025 url gives back a cute 404 error image) because there is Osaka show in October, so they'll probably announce it on the 3rd evening live concert (that maybe will have a paid live stream ticket, maybe)
the blu-ray/dvd is about the Tokyo concert, but the extra disc will have a chapter about Fukuoka event (which was incredible,because the event was on different floors, and all Fukuoka was themed about Magical Mirai)
Also, it's very weird if the Mirai 2025 announcement is not on the regular DVD. Maybe they will include a segment in the main concert film from the final Osaka show.