I’ll put my money where my mouth is and offer a glass of decent red wine if this doesn’t happen.
This is based on me taking a small interest in Military Modelling and observing how that particular branch of the hobby is advancing painting techniques.
GW will introduce two, at least, weathering products. One will be a spray of chipping medium, Hairspray to you and me. And the other will be a Dust Wash or a Mud in a jar.
Just my ten pence worth.