I have been trying to find a serious source of news on PIP changes, especially the much rumoured Descriptors changes, and I think I did with TheTimes
Until we hear it, we cant be sure, but it seems the change to the PIP descriptors are for dressing, eating, washing.
More info in the article below:
https://www.thetimes.com/uk/politics/article/one-million-britons-disability-benefits-cut-s5kj0z7fc