The list is interesting.
We know Muscat is confirmed, Detroit has made it onto the Virgin website of served routes, Singapore looking incredibly likely to open Houston and Air China Shanghai.
From that, San Diego is firmly Thomas Cook territory, Delhi Air India and Vistara for Mumbai.
I do believe it's only a matter of time before Ethiopian serves Manchester as it builds up a very decent hub at ADD, and Cape Town could be TCX, Fred Olsen cruises are apparently already using allocation of a yet un-named carrier for direct flights to join its ship in CPT.
It seems like Ken O'Toole has released a list that is incredibly easy to tick off. The only question marks for me are Bangkok due to yield and Jo'burg due to which carrier will operate said route.
All the routes have a very good chance of being announced in the next 2 years. Suppose you have to show what the terminal investment could be worth....