Two weeks ago, this site claimed the 787 deal was done:
http://www.strategicaeroresearch.com/2017/07/17/done-deal-emirates-selects-787s-over-a350s
There is also a post by an Emirates crew member/staff who also claims that FCOM docs for 787 are within Emirates documentation.
Also, is it true that many EK drivers are now dual rated for 777-787?
What about the planned 777X drivers?