2003 Stadiums were:
Stadium Aus
SFS
Marvel
Suncorp
Subiaco
Adelaide oval
Townsville
Canberra
Gosford
Launceston
Wollongong
Would not be much different, I went to Adelaide for the weekend. They had Wallabies v Namibia and Ireland v Argentina in one weekend.
Marvel hosted quite a few games, including a Quarter final.
I would not expect the MCG to host any games before the final, if it was to get another game it would need to be Wallabies or NZ v the best opponent in the group.
Would be different
Tournament has moved on since then, minimum capacity semis and finals required, the nz "grass bank" look doesnt appeal to the world wide audiences they want to engage like the US.
Forget Tassie it doesnt have the right stadium.
Stadium Aus 70k
SFS 45k
Bankstown 30k
Marvel 55k or AAMI 30K cant see Geelong getting anything
Suncorp 52k Cairns or Sunshime coast options if they have new stadia
Subiaco, demolished now the new Perth stadium 60k
Adelaide oval Its a poor rectangular ground but Adelaide will never get a better stadium under current govt than Hindmarsh which is too small, Adelaide wont be ignored come WC 55K
Townsville 30K
Canberra will the new city stadium be built by then? 25k
Gosford Not so sure this will get a gig, its getting really old and not many rugby fans Id say Newcastle will replace it 30k
Launceston Nope
Wollongong Probably needs that grass bank covered 23k
Thats 10-12 stadiums and probably enough