CrazyJ82

Not sure where to post this since it's a legacy US route but we'll be flying after AA and US are fully combined -- and on top of that, search isn't working for me at the moment:

We're booked in business class DUB-PHL-DUB around Christmas. It's currently showing as operated by a 332 both dates, and the DUB-PHL seat map looks as you'd expect with a scattering of seats taken around the cabin. But for the PHL-DUB leg the weekend after Christmas, all middle seats are currently shown as unavailable and all of the window seats are open (except for the two we've reserved). I know seat maps are unreliable displays of availability, but since this one doesn't seem to have the randomness I'd ordinarily expect, does this signal we're in danger of an equipment swap at some point?