Nope. I have actually had a delay design in prototype form since 2010, but never released it. There are just so many delay pedals and I never wanted to release something if I didn't feel it was contributing some unique angle.
I'm certainly open to hearing what people might expect to see in an IE delay. The prototype was going in the direction of strange sounds and unique features - glitchy and rearranged. But that was before IE really had a following and I was designing in a vacuum. I'm not sure if what I was doing at that time would be too weird to be usable for most people who already use other IE pedals. It's a lot of work bringing a design to completion, so it can be a bit scary to work on something for a long time without being sure if it'll fall on deaf ears, so to speak.
space6oy, or others reading, your thoughts are welcome. I'm not expecting you to feed me ideas for specific features, but more like the direction you imagine an Iron Ether take on delay would go in. If it was experimental, would that disappoint you or is that exactly what you would be looking for?