Yeah the fact 5 US players (Morgan, Heath, Press, Lavelle, Mewis) came to England simultaneously suggests it was to keep their players fresh, as most of the US based players that didn't have become inactive this past year. I don't know if there are extension options and if so whether they're related to whether the NWSL resumes or not (it should).Oh, I hope so, I once asked in here and was told she was just on loan due to the American league being disbanded for the covid, they played a cup comp instead but her team was knocked out early.
Essentially I think they are all keeping fit over here.
We have 2, I know Spurs signed Morgan but not sure if any more came over.
The fact we've signed another one though on a longer term deal makes me think that the NWSL might not kickstart the way they expected it to, so the US players could still be around for a while.