If that's the case, I can probably get 92% of the way there just by up-mixing the existing 5.1...others aren't convinced; I'm on the fence. I find that the height channels consist mostly of fronts and rears doubled at lower volume and/or with added reverb. It makes for an "immersive" experience, I guess, but it's more "enhanced 5.1" than "reimagined-for-Atmos." YMMV...