Linda Hamilton has, in fact, been very clear with her opinions in regards to returning to the franchise as Sarah Connor.
She went so far as to refuse some lines in the script because they were “stupid.”
She also has spoken out about how she and Tim Miller had to get on the same page with who Sarah Connor is now, noting Miller had an idea in his head that Connor would be “relatable,” an idea she had to bluntly turn on its head, given what she feels the character has gone through over the years.