Here's a video of Holly talking about the Charmed comics and Charmed coming back. The interview is from March 2017.
@H_Combs talks all things #charmed in this short comic con video and about the #charmedprequel dose she want it back doesn't seem so sure! pic.twitter.com/vbFkaRgVzk
— scott wilson (@ScottWilson200) 25 Μαρτίου 2017