AA wrote:
Designed to modernize and enhance the total onboard experience, the Boeing 777-300ER will come equipped with special features for every customer:
• International Wi-Fi capability
• In-seat entertainment with up to 120 movies, over 150 TV programs and 350 audio selections
• Universal AC power outlets available at every seat
• Specially designed Economy Class seating offering a higher recline pivot and an articulating
seat bottom that provides more knee room and more comfort
Universal AC power outlets would be nice. Right now, you need a cigarette lighter (DC) power adapter on their 757's.

I don't think they even make those anymore. Tells you how old that fleet is.
Unfortunately, the 777-300ER is probably not going to be used on any North/Central America routes. It's an extended range model, so maybe Brazil and points south or Europe/Asia routes.