I was on purple back then, blue never worked for me. Meh. WW here has no announcements so I hope this won't happen. It would render the program useless for me.I have no idea if it’ll be a worldwide change or just US, but reading the comments on their forum, people are saying it’s essentially the Blue program from the old Blue/Green/Purple days a couple of years ago.
She has until Dec 11th to voluntarily switch over - after that, it’s mandated.