I know this is made on a few birds already. I've flown the new seats both BOS-KEF and KEF-ARN. They are an improvement to the old seats, especially for the IFE and in-seat power port. Can't say anthing about the pitch, but they at least felt larger than traditional seats.

One annoying (?) thing is that the seat slowly reclines even when your'e not touching the button... makes you end up in a reclined position every now and then, annoying if you're eating, good otherwise.