Agree about their support. It's embarrassing. Their away support is much better than their home support, but it's not a patch on ours.
I'm worried about the new stadium too, but I don't think it will be as bad as the Emirates. Our core support is simply better than theirs whatever the stadium, I think this is largely to do with them being a more successful, more glamorous club and an obvious choice for new breed fans due to many factors e.g. the area the club is in being trendy, the media loving them etc.
The Emirates is also bad because it's a bowl, I'm not sure what the plans are on that for ours but I want to see four sides. Also- the hardcore from Highbury did not all move together so they are/were dispersed around the new ground. It's important we have an area which the Park Lane/Shelf migrate to in the new place. Personally, I strongly think Tottenham being moody as an area helps rather than hinders the atmosphere.
I'm sure the new place won't be as good as the Lane, but I'm not worried about it being as bad as the Emirates. Hopefully we can get some cheaper tickets with the bigger capacity, which would improve things, but I'm not holding my breath.