Possibly but I donāt know. Australia has a lot of immigrants but not a lot of emigrants, meaning heaps of people move here but not many of us leave, and when Aussies do live overseas (e.g Aussies in London or New York) they generally come back. The rest of the Pacific does but mostly to nearby countries like Australia and NZ, e.g. 15% of New Zealandās population lives in Australia but few Kiwis live elsewhere.
Compare this to England where we have a lot of permanent English migrants in Australia and millions of Aussies with English descent, so while many are too far back (or even way too far back) to play for England, many Aussies technically could be picked for England (or other British nations, i.e Northern Ireland, Scotland and Wales, plus the Republic of Ireland which isnāt in the UK of course). Other European groups like Italians are similar, since tens of millions of Italians are in the diaspora (including 1.1 million Italian Australians). Most Italian diaspora in Australia are still eligible for Italy but the next generation wonāt be (e.g Cristian Volpato is eligible through his grandparents so if he has kids then his kids wonāt be eligible for Italy unless theyāre born or live there), and most Italian Americans arenāt eligible for Italy as Italian immigration there game earlier.
If we look at migration trends the new countries weāll be fighting for players from are African, Arab and Asian countries. Asian Australians arenāt typically known to succeed in football though (possibly as some countries like China and India arenāt good at football, and the Japanese arenāt a massive community here compared to the Chinese and Indians as like Australia few Japanese feel the need to leave Japan). I guess the next Asian prodigy in Australia will probably be a Korean in that case (as South Korea do have major success in football, even if, like Japan, baseball is their biggest strength)? Wataru Kamijo is Japanese AND Korean.