Thanks all.
Looks very likely indeed VA3 is now a LCC.
Probably saves them a tonne of $ (Aud/Usd) in rent for them to rent the security zone and all the other things at T3.
Have never used T4 domestic secure side at Tulla, might be an interesting experience to go walkabout maybe once or twice, then,
.
Even though (if down the track they close, big if) the VAd lounge is still there, but the walk will be a long one, have to be at T4 much earlier than flight in future.
Edit: so, 2 security secreening points in relation to VA at MEL will be merged into 1, the one at T4, with the ones going are (a) the one that has premium screening from the MEL lounge, and (b) the one between T3 and T4 down that walkway, down the left while facing the VAd MEL lounge?