Boeing 737-8 they sound like better timings. I know it's only an hours difference but it seems like a better time arrive and depart New York. Presumably slots are very hard to come by at EWR so it takes time to get a decent slot.
How is the route doing? Wasn't there talk of La Compagnie expanding at Luton with more destinations? If the route is doing well, perhaps a second daily New York service might work?
Could a 757 get to Dubai direct?