VS Dubai rotation switches to A333's

Hi there
I noticed that yesterday's VS400/401 Dubai flight was operated by G-VUFO yesterday and now A330-300's are now flying this route. Will it go back to A340 or stay this way

http://airlineroute.net/2012/11/19/vs-dxb-jan13/

http://airlineroute.net/2013/01/01/vs-s13update5/

It's on a 330 until 31st march when it swaps to a 340-300 for the summer

It's on a 330 until 31st march when it swaps to a 340-300 for the summer

When will it be back to A340-600