I didn't see a thread for this and didn't want to clog up the Ioniq 5 or "Classic" Ioniq thread...
Ioniq 6 will be a GT-style saloon based on the Prophecy concept and is due late 2022.
"Prophecy" Concept Photos
with DK Kim of CarSceneKorea YouTube (and now also Fully Charged). I think this video has less filler and more info than his Fully Charged one released today.
I think that's the Ioniq 7 SUV next to it.
Some spy shots showing it a with less camo. You can better see the overall shape of the car.
Source - https://www.motor.es/noticias/hyundai-ioniq-6-fotos-espia-diseno-exterior-202284194.html