I think it's clear that without a change in the seating plan nothing will ever improve.
Like you say we need an larger area thats sold as a singing section. This will mean moving season ticket holders but other clubs have done this so i'm sure its possible. The problem lies with the club not being interested. Without them on board nothing will change.
Until then we'll just be moaning about the poor atmosphere, how people leave early etc etc...And round and round we go.