Delta has plunged into the world of the premium economy traveller. Dubbed ‘Delta Premium’ the premium economy complements the new International Delta One, Delta Comfort+ and main cabins. Available on select international routes, passenger will be treated to a true premium economy cabin (featuring the same hard product as American Airlines)
So while the hard product stacks up, how do the American and Delta cabins compare? Well to be honest, 38″ seat pitch and 19″ wide (with the aisle armrest being able to be lowered for extra comfort. they are pretty much identical, each providing a slight tweak on the soft product offering. Onboard Delta, passengers will find the same wider seat, additional recline and an adjustable footrest and leg rest that is expected in such a premium cabin.
Arriving in late 2017, the new product will offer Alessi branded plated meals and a dedicated flight attendant as well as Westin Heavenly In-Flight Blanket with pillow and a TUMI amenity kit featuring Malin+Goetz Travel Essentials, 13.3-inch, high resolution in-flight entertainment screen, in-seat power and Sky Priority service.
The cabin will be introduced on the airline’s Airbus A350s entering service next year. Delta A350s will feature 48 Delta Premium seats, as well as 32 Delta One suites and 226 Main Cabin seats. Delta Premium will roll out on its Boeing 777 fleet beginning in 2018. Additional fleets may be added.
TheDesignAir 
No word on it featuring on 330 neos though which they will use on transatlantic. Surely this would have demand given BA/AA and shortly Iberia offering.