In September, Miller revealed she was getting back to work in a photo posted to Instagram. "Shooting for a new Lifetime Special in the big gym at the magnificent California Rehabilitation Center! Wish I could’ve stayed longer! #aldc #abbyleemiller #dancemoms #abbylee #aldcla #lifetime," she wrote at the time.
Back in July, a source told ET that Miller hopes to rejoin Dance Moms for the show's eighth season on Lifetime and is already searching for new talent. A second source shared with ET that "she's not filming yet, but there is definitely some pre-production underway."
ET caught up with JoJo Siwa, one of Miller's former students, in August, and she revealed how Miller's doing following her difficult year.
“She's not 100 percent there yet but she is doing good,” Siwa explained at the time. “She’s going through therapy, she's going through all the things that she needs to be going through, chemo obviously. [I] think she only has one or two more rounds of chemo, so that’s really, really good for her, but she's happy, she's in good spirits.”
The 15-year-old actress also revealed that Dance Moms is documenting some of Miller's treatment in order to help fans understand "what's actually going on right now."
Watch the video below for more of ET's interview with Siwa: