Hopefully the Y cabin of the A350s will be 9 across. The 10 abreast 77Ws BR has is painful! and you don't know when you would run into one...
I used to love Boeing and still hold their stock. What happened in recent years (737MAX and 787 manufacturing problems) is just disgusting and the root causes are probably a lot deeper (e.g. lost too many experienced people, outsourced parts too much, lost of its safety and quality focus, morale, bad management, etc.) for them to take this long to get out of it.
Or, maybe bad fengshui?
I thought the 789s are meant for long thinner routes rather than replacing the A332?