This is the current status of the cabin interior mods. as I know them.
Seat/Power mods: 4 complete, 2 currently undergoing mods, with 88 to go.
Media server: Pretty vague info, end of year to begin inst.?
Heath Techna overhead bins: One plane done as a trial (N584AS), I don't know if it will be done on the rest of the non BSI interiors.
Overhead/Sidewall LED lighting: Done on N584AS. I don't know whether it is also a trial or just the first plane to be done.
Dividers:Of the planes that have the seat /power mod., two have nothing, N584AS has a divider specific to the heath techna bins and (N587AS?) has a trial divider installed by a engineering order. The installation of dividers may be waiting on the decision to go ahead with the heath techna bins or keep the current type.
-400 seat mod: This one hasn't been discussed, but the seats with articulating headrests (B/E Spectrum) that are being removed from the -800's will be installed on the -400's. I don't know the total number of planes that will be modded, though the first plane began the mod. today.