Battle-Masters hasn't been a huge range of "toys" thanks to price and weird colours, and only one pack has been released in Australia (the 2-pack of Optimus & purple Megatron).

People in America have found another two pack of Optimus and Megatron, with a slightly modified mould to Megatron and coloured grey this time
Optimus looks to be the same as the Movie 2-pack version (with a sword).

It's unlikely to show up here.