Would rectangle sports be worse off with a hugely expensive and too large stadium that would have significant running costs making the financial viability of teams playing there with the stadium only half full nigh on impossible.
It depends on how big they want to go in Perth. If Perth is to be a 60k plus semi final venue, then convertable to Oval is the way to go. If its just round of 8, then 45-50k reducable to say 30-40k, a rectangular is the way to go.
If its a big rectangular stadium, it would end up paying clubs to play there to generate advertising money, (its primary source of income) a bit like ANZ in Sydney or Bluetongue in Gosford now. Crowds won't really come into it.
If it is purpose built for football codes, it won't be a problem (think MRS, a small version of Suncorp or the new Durban Stadium for 2010). Its only if its a cavernous multi sport stadium like ANZ that its becomes an issue for crowds at club matches.
Remember, for FIFA, they want to leave a legacy to their sport. They have some requirements of hosts to help grow the game, and their stadium rules are very specific. If a stadium is not good enough, it is a no go. No negotiating. You get 1 historic venue (in our bid the MCG) that can go outside the limits, and the rest have to comply.
Putting the hate aside, having two AFL clubs (plus cricket) selling out a new stadium each week to help pay for it may mean that the World Cup organisers may be more willing to have a stadium that suits AFL post World Cup than one that only suits rectangle pitch sports.
Why Cricket and AFL don't get on (stadium wise) in WA or SA absolutely baffles me. It is holding them both back.
As far as the world cup goes, the only options with Perth are;
1)
+60,000 semi-final host venue, multipurpose stadium like ANZ, primarily for AFL/cricket but convertable for big international union and soccer matches, plus an upgrade of ME Stadium to +30,000 (size determined primarily by the Force as they would be the biggest club there);
This was pretty much the previous WA Governments plan. The current gov scrapped the plan. They want to use Subiaco oval, but FFA and the Federal Gov have said no. So its build the previous gov's plan or...
2)
45-55,000 for round of 8, purpose build football stadium, reducable to 30-40k, and a major redevelopment of Subiaco Oval.
3)
Perth, Australia's 4th largest city, is not part of the bid. Australia doesn't host the world cup.
Regardless, the Force, Glory and Reds will need somewhere decent to play, as will the fagballers. If WA wants to draw big international events other than cricket, they have to think beyond the myopic AFL outlook they currently have.