I've got a AF LAX to CDG in two days. Should I consider the plane (A350-900) locked at this point, or could change in your experience.

Also, especially in the A350, presuming it will stay as that, do people have experience of cabin temperature? I know there are no individually adjustable air nozzles. But on many airlines people complain about it being too hot. Any experience? Worth the weight and space to bring a USBA fan? TIA!