You can actually see the lines in the Swiftly material in this top picture of the Dance Studio Jacket. Now that I see a closeup picture I think the ruching in the logo is Swiftly and not sheer luon as I’d thought. I’ll bet we see this in Wren.
If this comes out in the same Heathered Iris/Wee Stripe as the Moder Racer Tank or a solid Heathered Iris I would feel tempted. The Violaceous one momentarily tempted me but I have a Potion Purple 5yr Pima and the two would be too similar.