I have a flight (LHR-OTP BA884 on 22.05.2015) for which I'm trying to pick a good CE seat. BA's MMB shows the aircraft as an 'Airbus A320 jet' under 'More flight information', and as a '32A' under 'Aircraft type' when actually choosing seats. As 32A isn't shown in the wiki here, I'm assuming this is just a generic placeholder and not so useful to pin anything down.

The BA seat chooser just shows 5 rows of CE, but I can't scroll up or down to see any further cabin layout. Though I'm guessing that wouldn't help identify the specific cabin anyway since it'd probably just be generic too.

Am I correct that there is no way to get any specific cabin layout detail this far out from my flight, or is there some tool that will show an actually allocated plane/cabin layout this far out?