So with an additional 7,500 seats or so added to the North Stand by expanding the second tier, how many would be in that upper tier overall? Must be 3,000 roughly already in north stand L2? 10,500 in a single tier would still be immense and with a further 3,000 below in L1 that would make a racket if it is marketed to secure the right people to generate the atmosphere. If the club can finally relocate the away fans somewhere "worse" in terms of for their positioning, we can get the whole south stand back too and have two ends solely for city fans which would get noise going around the whole ground.
We have all seen the place rocking on occasion. The Hamburg quarter being the standout game, but the Tevez league cup semi was another. Sounds like the club will think long and hard about this. Personally, if many have to move and are annoyed by that, I wouldn't care if it was for the sake of getting the atmosphere addressed. This is our last chance as a club to sort it.
People shouldn't have to pay more though so they should allow those relocating due to the expansion to do so at the cost of their current ticket price out of fairness. Rather than make them fork out an extra few hundred to move to the East Stand for example when it is due to their preference not to remain in a more rowdy part of the ground.
Lots to think about in terms of where families go etc. But these forums should iron most issues out and tick off things to the advantage of thr majority of people.