family friend

Hello All,
I am looking at a flight from SFO-JFK, a red eye on August the 2nd. This would be approximately two and a half weeks from today. There are currently 45 free seats on the plane yet I checked the fare class availability and found
F5 A2 J7 D7 I7 Y7 B7 H7 L7 K7 M7 W7 V6 G0 S0 N0 O0 Q0
Would anyone have an idea if G, S, N, O or Q availability would typically increase given the open seats and the timeframe? Many thanks.