I've just seen this interesting report:

https://airlinerwatch.com/aegean-air...eo-next-month/

It states that the A20N will have a total of 166 seats which is lower than the 180 which now seems to be standard - although both LH and BA are having issues with the density and weight distribution.

It breaks it down further and states there will be 12 business class seats and 154 in economy. I wonder if we're going to see a properly differentiated business class product? The other info in the article has been well recorded elsewhere but I haven't seen anything about seating yet.