The new 1-2-1 J class on the 777 is set to operate as of 11 August, yet to date there’s been no further information about the design of the seats other than the generic press release: https://www.emirates.com/media-centre/emirates-unveils-first-destinations-to-be-served-with-refurbished-boeing-777/

Presumably they’re likely to be an exact replica of the existing 380 J seats? Otherwise you would have thought that Emirates would have been building up the hype a bit more…