Just looking on LiveTraffic in advance of this weekend, and I can see some headaches for people:
QLDers:
1) The Southbound Pacific Highway is closed around Ballina (https://www.livetraffic.com/incident-details/117866)
2) The alternative route using highways (Bruxner to the Summerland Way) is also closed (https://www.livetraffic.com/incident-details/117891) and subsequently the Summerland Way is closed (https://www.livetraffic.com/incident-details/117946) There might be back roads you can link together to get across.
3) Coming down the New England Hwy, the only option open across to the coast is the Gwydir Hwy, and that looks touch and go (https://www.livetraffic.com/incident-details/117810)
Sydney/Victorians coming inland:
Coming from the south, it doesn't look as bad at the moment. If you're coming inland, then the routes from the New England Hwy across are the Oxley... and that's it....
Sydney/Victorians coming Coastal:
Seems to be all normal
Hope that helps everyone,
Ed