Just heard about it this last week at camp. They look interesting.
Here is the quick run down.
Red is gone (except for where it says Boy Scouts of America on the shirt)
All the materials are modern and designed for moisture management.
Shoulder Loops and Unit numbers are now Forest Green as is the hat
I was a bit worried when I first heard about them, but they look close enough to the old uniforms that these being slowly integrated into a unit will not be too big of a shock.
New Uniform info here