User blog comment:Kajune/Supernatural spin-off, "Wayward Sisters" confirmed/@comment-1104107-20170621071741/@comment-10889355-20170621073224

I'm 100% sure Donna, Alex and Claire will be part of the spin-off. We just need confirmation... at the Comic Con perhaps?

And yeah, Supernatural is pretty much a sausage party so no surprise there but I do think they're doing this spin-off because Supernatural is coming to an end which I'm not opposed to, honestly. I lowkey feel like they need to end.