So, I'm looking at the seating for my flight this weekend, FR5041 LBA-BTS. I'm looking to see what's going on with seat reservations.

Quite surprised to see that by far the majority of the pre-reserved seats are in the half of the plane behind the wings. I'm trying to think of a rational reason why this would be.

Now, I'm conscious that if you board at the rear, you can get on and off as quickly as if you board at the front, so it's like free "Quick Exit" seats right at the back, but that doesn't explain why up the middle of the plane, it's mostly reserved behind the wings. Is there a trick I don't know about?

Now, I'm still booked in 1A, currently all on my own, and all the other priority seats behind me are currently unassigned. My reckoning is that there's 1 seat left on the flight (I can't book more than 1 ticket). I'm guessing that the last randomly allocated seats will be at the front of the plane (they'll allocate middle non-premium first and such to give people the chance to upgrade right up until departure). If that final ticket doesn't sell, does that mean seat 1B might be empty? Can I assume that if I swap to 2A, or 16A, the rest of the row will be filled with random allocations?

Is there an opportune time to check in if non-priority and get the plum seats? Or is it totally unpredictable?

Not important, just trying a bit of fun to predict