The news release indicates new B777 deliveries and retrofitting to A380s, but no mention of older B777s being upgraded.
The enhanced screens and GUI will be introduced on all new Boeing 777 joining the Emirates fleet and subsequently over the next year on Emirates’ A380 aircraft. The system will be available in all classes of service, an Emirates standard.
Full article:
http://www.emirates.com/english/abou...86459&offset=0