Wembley would work better than the MCG.
1. Bigger population
2. Easier for europeans to get than it would be for Asians to get to Melbourne
3. Better views at wembley
The date and time of this will be interesting. Currently, with australia being on daylight savings, Raw starts at midday and main shows of PPVs start at about 10 or 11 depending on the show. However when that switches it gets ugly and and everything is two hours earlier. If they start this event at 9am or 10am on a sunday or a monday it could be interesting