Found by u/PabuFan over on Reddit, the production company’s website claimed that Jessica Matten had been cast as voice actor for Katara in the new animated Avatar movies. The website has since removed that section.
Click the link to see the screenshot of when it was live.
New animated movies? What in bending tarnation?
When Bryan Konietzko and Michael Dante DiMartino left the Netflix adaptation they announced they were forming Avatar Studios. And since then have announced 3 Avatar movies.