This is strictly a GUESS!
I would say if this RUMORED dress does release in August, chances are it will change color along with some of the details. It looks like a prototype due to the lack of details on the bodice.
1950s prom dresses are HIGHLY COLLECTIBLE for vintage weddings.
In fact I've sold a few myself. They're dainty, frilly and come in sherbet colors!
These over the top frilly, ruffled layered ultra feminine party dresses were worn to prom, weddings and on special occasions. Perhaps there will be a ruffled party dress for Maryellen within her collection.
We will wait to see - how exciting!