Exonomy class you have enough for 2 x return to Europe on Qantas. You also have ‘almost enough’ for two oneworld awards in economy, allowing you to fly round the world, or another combination of flights, with up to five stopovers.
Premium economy you could fly one way to europe and try and find a cheap economy class home, or you could fly return to asia (premium economy) and then buy a fare from asia to europe (either economy or business.
