Cheap money will keep it churning however rising unemployment and low business confidence will slow it down to a plateau IMO.
If there is a correction it will happen with a thud, however only shave 10-15% off before everyone jumps back in.
Historically that's what seems to happen.
I think the Chinese are the wild cards here.
I have experience with property in hk and they dropped alot more.
The Chinese are like lemmings and keeping up with the Jones is another factor especially about face.
If your neighbour, relo starts boasting that they have Australian property, then you also go and buy one.
If they sell them you sell, you don't want to be embarrassed by holding to a losing asset and losing face
When the drop starts, the rest will follow and it will collapse. All those owning those off the plan apartments will sell and sell which will affect surrounding apartments
If they are desperate for money at home due to other bad investments they will sell their aussie property
This is also what the Japanese have done in the past. It's called repatriation.
When market values drop, those in Australia that have borrowed to the hilt will get called on their loan ratios. If unemployment rises then they won't be able to service the loans anymore and will be forced to sell
Why I say it's a wildcard is it really depends on what type of money was used to buy these properties. Is it black money or corrupt money? Is it money that they can't repatriate because they got it out illegally? Or are they planning to defect to Australia. If these situations are the case, then a massive selloff may not happen.