https://www.primetimer.com/item/ABC-teases-Charmed-reunion-on-Greys-Anatomy-2JSlgr

Alyssa Milano and Holly Marie Combs reunite on next week's episode of the ABC medical drama as part of the network's "Cast from the Past" stunt. ALSO: Watch more "Cast from the Past" promos (https://ew.com/tv/2019/10/04/teasers-abcs-cast-past-week/).

Grey's Anatomy wanted to "wink" at Charmed with Alyssa Milano and Holly Marie Combs cameos (https://people.com/tv/greys-anatomy-how-alyssa-milano-and-holly-marie-combs-will-channel-their-charmed-characters/)

"Our goal was to wink at Charmed while still making an episode of Grey’s Anatomy," says showrunner Krista Vernoff of tonight's episode. “It was incredible to see Holly and Alyssa work together again,” she adds. “There’s a playfulness when they work together — a joyful, sibling-esque quality that just instantly came back to life. They are powerful women, forces of nature, and I so deeply admire their political activism. It was nice to see the joy and fun they brought out in each other, too, as if no time had passed.”

At this point, is it doubtful that we'll ever get a formal reunion and not just two of the sisters at a time? Rose the last time I checked, "hates" (https://tvline.com/2020/08/22/charmed-alyssa-milano-rose-mcgowan-feud-toxic-set-allegations/) Alyssa, who in turn, feuded (https://celebrity.nine.com.au/tv/charmed-cast-feuds-what-happened-shannen-doherty-holly-marie-combs-alyssa-milano-rose-mcgowan-explainer/204c167f-6b75-4819-912f-f06a8d87080b) with Shannen. And Holly if I have my facts straight, for whatever the reasons, had a falling out (https://www.lipstickalley.com/threads/shannen-doherty-and-holly-marie-combs-what-happened.1373942/) with Shannen during the initial stages of her cancer ordeal.