Just to add to my previous sightings (since I went again today)

Werribee Plaza:

Big W:As mentioned POTP wave 1 deluxes and voyagers are in stock and on the shelves and as for that movie 5 dlx box its wave one (great more shelf warmers!)
Toys R us:Same as before but I spotted within the capping above the tf section some larger boxes, after asking a worker to check they were indeed leaders, I know at least ONE rodimus was left and something else, I took home a prime.

Be aware the shelves were devoid of POTP leaders and still on the capping for...whatever reason so if you want a rodimus and a *chance* of a tr optimus just ask, should be visible if you duck under the star wars cover label thingie