We actually had PATCH NOTES.

Several SR Hime were buffed. I feel like the patch notes were half bullshit, since I wasn't able to confirm like half of them on DMM wiki. But, the important ones that I was able to confirm (from wiki, CBA to test ingame):
1. Astraea now has 10% water res+
2. Amon now has team-wide +10 burst
3. Fortuna can no longer buff enemies, so people can't sabotage raids
4. St Nich (SSR Eidolon) can no longer buff enemies, so people can't sabotage raids