One thing I recently noticed were the new WiFi tower and 5n1 displays that have forecasts from Dark Sky.
I'd really, really like to see that in an Atlas display! Even better would be getting weather watch and warning information, as well as local radar. I'd consider a subscription fee for the radar if necessary.
Also, my dad really prefers the simplicity of the rain readout on the 5n1 display you sent him. I can't remember which model number it is, but he likes it so much I have to keep the old 5n1 running beside the Atlas. He prefers the Atlas for everything else.