As per latest schedule filing in the OAG for the week of 07NOV12, Virgin Atlantic is displaying operational changes to its Caribbean operation from London Gatwick in Winter 2013/14 season.

Winter 2013/14 season is in effect from 27OCT13, initial changes as follows:

London Gatwick – Antigua* Service increases from 3 weekly to 4 weekly, operating as terminator service with A330-300 (VS033/034)
VS033 LGW1020 – 1500ANU 333 x137
VS034 ANU1730 – 0515+1LGW 333 x137

London Gatwick – Barbados Service operates with 4 weekly A330-300 and 3 weekly 747-400, with terminator routing
VS029 LGW1030 – 1515BGI 333 x246
VS029 LGW1055 – 1540BGI 744 26
VS029 LGW1325 – 1810BGI 744 4

VS030 BGI1745 – 0550+1LGW 333 x246
VS030 BGI1805 – 0610+1LGW 744 26
VS030 BGI1955 – 0800+1LGW 744 4

London Gatwick – St. Lucia Nonstop terminator service (VS031/032) will operate 1 weekly instead of 3 weekly, Airbus A330-300 replaces 747-400 (Overall service increases from 3 to 5 weekly for entire W13, other 4 weekly service refer to subsequent entries)
VS031 LGW0940 – 1435UVF 333 7
VS032 UVF1725 – 0530+1LGW 333 7

London Gatwick – St. Lucia – Grenada Grenada service operates via St. Lucia (VS089/090) instead of Tobago (VS051/052). Airbus A330-300 replaces 747-400, 2 weekly service
VS089 LGW0900 – 1345UVF1445 – 1545GND 333 14
VS090 GND1755 – 1855UVF1955 – 0800+1LGW 333 14

London Gatwick – St. Lucia – Tobago Tobago service operates via St. Lucia (VS097/098) instead of nonstop flight, service operates 2 weekly while Airbus A330-300 replaces 747-400
VS097 LGW0900 – 1405UVF1505 – 1605TAB 333 26
VS098 TAB1805 – 1905UVF2005 – 0815+1LGW 333 26

*Antigua and St. Lucia each will convert from mix of 0 and 1-stop (via Barbados) to all-nonstop flight

Note all schedules listed above are in effect from 27OCT13 to 03NOV13, as Winter 2013/14 schedule is currently available until 03NOV13 at time this post goes to press.