I get what you're saying, it's a big risk; I'm not saying it would for sure work, and your questions are exactly the type of ones the AFL will need to ask themselves.I don't see Auckland can hosting a team once you consider that they'll have to play their fair share of games up against NRL, Super Rugby and the new A-League team, and also play in some pretty crappy timeslots. They could very well get well over 20k on a random saturday night fixture when the Warriors aren't in town and they have travelling fans from a big Melbourne club, and it's a novelty night out for young people in a cosmopolitan city. How many will go at 5.20 on a Sunday when they have to play a home game against Freo (no travelling supporters) after the Warriors played the day before?
It's probably not going to happen and if it does, I'd be pissed if it's at the expense of ACT and WA3 who really should be part of any proposed expansion to 22 teams.