It'll not overly make much of a difference i wouldn't think.
As i said, if we get 6,000 for the last 16 then i think we would be doing well to sell those.
There's 37,500 in the SSC, Vast majority of those who are going will have shot their load by the knock out stages in terms of work, family, money etc. I'd imagine the hardcore who go to most away games will make sure they are there and then there will be a few thousand tickets that will trickle their way down.
Not everyone can just take 3+ weeks off. I am planning to fly back over but again, plenty of mates have family holidays and can't. School holidays will have started by then and flights will be through the roof, as will hotels for last 16 games.