What concerns me about all the new atmos details is the new ideal height for side and rear surrounds of 1-1.25x the height of the mains. Basically 4-4.5 feet as Nick said.

Not an issue for in wall speakers, but on wall.... Kind of draws away from traditional speaker layout in a 7ch setup. How will this affect legacy audio sound mixes/layouts I wonder.

Thanks for the linky eman.