The A330-300s are being reconfigured to a 1-1-1 layout in Upper Class during 2017. The suites are being removed and replaces with the UCS2 suite that's currently on the 787-9s. All in all a change for the better I think many would agree.
If your seat map is showing that config. then VS must be expecting to operate your flight with a reconfigured aircraft. Keep an eye on it though as there's always the chance it could change to a 1-2-1 config. or even a different aircraft all together.