The article somewhere was talking about investigating the possibility of adding another row of seats behind the exit row on domestic A/C. The seat pitch on the 737-700's is so tight now you would practically need a shoe horn to squeeze in and out of the seat if they added another row (Try sitting anywhere behind the exit row in a 700 on a SYD-PER sector). The 800's and embraer's seat pitch doesn't seem to be as bad.
