How about predicting the number of A350s that will be delivered in the next calendar month during 2016 ?
I'm actually working on something along those lines.
Re a new game - if you did a new game / prediction thing for monthly delivery no's of A350s you could set up a board for the game, then a thread for each month and then use a "poll" for people to vote on the number ? Say 0 thru 8 ?
What about guessing the number of convoys to be performed in 2016 to gain some bonus points? Of course the deadline should be early enough, probably already in December 2015, before schedules for 2016 are coming out.