I actually saw them here
https://www.bladeandsoul.com/en/news/blade-soul-divine-break-items-and-systems-preview/
This is also the only other place where you can see the new soul and pet psyches mentioned as well (They aren't on the trove page either). So I don't follow the logic of mentioning all of the big 4 (soul, heart, pet talisman) in the system preview, listing none of them in that patch notes, and then including half of them in trove... it's bad communication