Not a huge expert on EK fleet so bear with me. I'm thinking of flying on an EK 77W from the US and haven't haven't done this for at least 5 years given A380 were common on US flights. However, what I do recall is that the 77W EK flew to the US were an older bunch (I think they had higher MTOW ?) . If this is still the case, have these planes been updated with newer business/economy seats ?