Thanks Oldbalboy and Benji, that makes sense. Still a 6 hour flight is pushing it a bit with no IFE, but I guess once BVC is expanded, bigger and therefore more IFE laden aircraft will be able to fly there. As I understand it the 757-200 is the biggest they can have there. I did ask Thomson but they said they didn't know!
We will be able to select our seats soon and I always like to sit just behind the wings so I can see the flaps in motion, so I think on the 757-200 that's about rows 24-29. What rows don't have windows as I want to avoid these. Again I asked Thomson and they said they didn't know!