Great news, and I like the concept drawing.
I'm also sceptical about the low figures given, but it does show how it wouldn't take all that much to completely transform the concourse. The original design of it has a great advantage in that it's fairly uniform and generic to be able to facelift it like this.
The glass around the outside improves the stadium so much, cannot wait until it's further/all the way round.
And completely agree with more tunnels like the tana one. Reckon the likes of dura and siggy would be very well placed for that. Rugby will always be confined to the first 15 numbers and has the larger following, so it's bloody handy that they wear/wore 22 and 18!