Yeah look Foley's stated aim of a 20k-25K downtown purpose built stadium would be great, but sadly it just doesn't fit in with what Auckland needs right now. I'm sure since he first made that comment late last year he's been told that. But yeah doesn't mean it won't happen at some future date - just that he would get alot local opposition to that idea - especially if a larger National Stadium that can go into club mode is built. The 2 venues then in a zero sum game competing for events.
Probably his best hope is that the revamped Eden Park 2.0 option wins the day of the 4 National Stadium options. I think a lot of Aucklanders/Kiwis would see that as a short sighted choice, and yes then throw some support behind Foley's proposed smaller downtown structure.