The first episode of series two of Top Gear Australia appears to be starting this week on SBS, Monday at 19:30. Unfortunately, this is being shown as Top Gear rather than Top Gear Australia so it no longer distunguishes between the two productions (I've reported this to Ice directly).
Personally, I would like the full "Top Gear Australia" title returned so than my PVR doesn't waste disk space by recording the local rubbish, only recording the original series from the UK.