I think the massive TV is simply just marketing-speak for the current flight display - perhaps it will be able to show other things rather than that, but I suspect it will just continue with what it is at the moment.
As for the seating arrangements, all good bars have space for awkward antisocial solo drinkers - an oversight, especially for an airline with the UK as its primary source market with all of their social mores
Then again, if you want to drink alone, there's always your seat!
I suspect the tables will just be used as before - mainly for people to sit at whilst waiting for the lavatories at one hour before landing.