Hawaii ports only have up-to February ,so can’t tell if it’s going that direction.
As for Singapore, I don’t think Royal would send a ship that’s already been home ported.
They usually like to hype a new ship,different ship even if it’s an old one .
Quantum would be an over kill year round in Australia , maybe something smaller.
How about Quantum to Japan and we might be getting Allure ?
I believe Allure is at a loose end after a dry dock about then.