Promising Update with a Catch - Envisaged Echoes (4.8)

Envisioned Echoes was one of 4.8 features, which to my surprise was just small addition to Imaginarium Theatre from 4.7. It makes gearing and farming a bit more worth it, but what are the requirements and rewards?

[@lorgorr]

I was talking about it rotating, but it wasn't exactly true as we dont know it yet, so might have just these 5 characters and more will be added later on. But its not 100% confirmed how it will be in the future.

[@muminnek4]

I would like to see more characters there, or at least some regular rotations. I was about thinking to level up my Qiqi, but level 90 is very resource demanding, so why should I do it, when I don't use her at all? To have some nice sparkles behind her which I even will not enjoy when I don't use her 😂

[@user-lk6wy8mz6w]

Sounds boring to me. The effect is minor. Not sure why they choose to just drip feed these things either. I would have much preferred skins, but at this rate, how will they even manage to make skins for every character within 3 years time?