All will be revealed shortly.......................
What I've heard and think will be the case is........
Order of 787's to be announced shortly, Although TFly will be a late addition to the order book, many orders are also cancelled or deffered to a later date so there will be aircraft available if and when TFly want them.
787's will replace the 767's. (Training Captains will operate 777 for a short while with another airline, poss emirates or BA so that when 787 hits the line TFly can train their pilots in house)
757 fleet will be reduced to about 10 aircraft (they're in good nick, very flexible and cost peanuts to lease so we'll see them around for a good few years)
Rest of the fleet will be made up of 737-800 or other NG derivatives.
So the rumour goes...................................