We're flying the above rout 3rd March and returning 17th. The virgin site shows 747 both ways. Will the refits be carried out by then? Also we're flying PE for the first time with our baby who will be 10 months! Any advice on where's best to sit? Thank you.
Best bet is to check your seat requests in Manage My Booking (MMB) and see what type of seating configuration you have.
Please see this LGW Refit FAQ Post for details on how to find the seat maps for old and new planes.
Goods Luck!