When it gets closer to departure I will check online to see, but if I'm understanding correctly, I won't actually know until we walk onboard because the AA seat map is the same for super diamond and concept D? I believe there was a second concept D plane, but it sounds like that third version with a different seat count is no more? Unless of course I check the tail number, but even then, it's susceptible for a swap? Currently we are in 8L and 9L, we are both window watchers and don't mind a good engine view!

The diagram is very helpful, thank you!