https://x.com/Wuthering_Waves/status/1954467757761712564
>By Sun's Scourge, By Moon's Revelation
>—Hark. Blow the hunting horn of Septimont.
>Dawn Breaks on Dark Tides
>—Come. Embrace the finale of Rinascita.

So that was the actual 2.6 and 2.7 patches names and not the two new main acts names.
2.6 is still setting up things.
2.7 is the actual finale of Rinascita, with Galbrena going after Carte and Qiuyuan encountering TDs
2.8 Chisa is likely to be the intermission before the new region.