Its quite easy to mount a sale and lease back for new aircraft. Its a classic in aviation.
But not only the choice, the timing and numbers can make a big difference.
Bruair is not the only one in Lufthansa group where fresh aircraft would make sense.
The backlog may be huge, but didn't grow in 2016. Both manufacturer start to eat the backlog.
And the timing between the last CEO and NEO is not full.
A fresh 330 CEO at 342T with RR would be a huge difference, at a fraction of the price
BTW Boeing as the same problem in the transition between 777 and 777X.
And if you dream a bit, you can also try to get productions slots that may become available.
Like the cancelled order of 22 A350 by American Airlines of wich 7 will not be build for now.
There are even 3 A350 ex Sri Lankan delivered to Sichuan and stored
