It's difficult enough trying to clamber over people to get out to the toilet when they're all nicely lined up, but when they're facing in opposite directions, it doesn't bear thinking about. It'll be like an obstacle course unless, of course, they come up with some way around it.
It's a bit like that already in Business Class (or is it First Class?) where the seats almost face each other but you do have a modesty screen you can pull up between you. I think those are only in twos so you can probably get out on your own side without trampling your co-traveller in the process. The seats convert into beds as well. Not that I've had the chance to try one, of course. :'( but I've passed through many a time on my way from cattle class.
I hope you can choose back or front facing or I'll be in trouble.
