Spurs fan here in peace. Been following this thread just because I have a general interest in stadium design and am looking forward to seeing what Everton comes up with when the club finally announces their plans.
The image quoted above is from the old plans for our stadium which received planning permission all the way back in 2008. The single tier stand in the old plans had a capacity of around 9k. The single tier stand in the new plan - revealed in 2015 - has a capacity of 17k (and this may go up should the law on safe standing change). Full details of our plans here -
http://www.tottenhamhotspur.com/new-scheme/
As far as corporates go, they will be restricted to the East and West stands with the South stand single tier and the North stand all GA.
So the picture you actually wanted was this one: