That was the next logical steps after Boeing electrifying most of the 787 functions (I'm still wondering why Airbus didn't go with bleedless engines for the 350).
My impression was that Airbus quite consciously decided to be a bit more conservative with the A350 after seeing all the problems Boeing had with the 787 switching to a zillion new technologies, all at once...
Airbus had also said that the Boeing was using too much carbon fibre on the 787, saying that it was too new a technology, but they ended up using more of it on the A350.
I bet all the newer airplanes will switch to bleedless engines in the near future.
