Her ds is now re-enrolled in his first school. Which was (and still seems) reasonable from an emotions and sensory POV, although it still has the limitation of not 'teaching' him anything much. This has let her put the clique of local professional bullies at arms length, and diminished their CP threats.
She has got him his sensory equipment, and 'let go' of the unfairness of the private school retracting their offer of a school place with bursary. She has decided (for the moment, anyway) to prioritise security and familiarity for her children and to make the best of house-sharing with her ex-dh.
She has come back to MNSN and answered those posters who were frustrated and critical of her previous 'frozen' state, mending relations with some, and stating her points of disagreement calmly to others. She is managing to keep her mouth shut at the new (original) school until she has more chance of winning any battle, and is still having a look at the longer term options.
There's probably more positive action to list, but I read most of the updates on my phone and it kept hopping around the thread!