I don’t think 5 news outlets confirming it and an implied confirmation from the actress herself counts as “100% false”.
and nothing from Lucasfilm has actually confirmed the Boba Fett and Bo-Katan stuff.
Yeah, that stuff is kind of shakier. But Lucasfilm is notoriously secretive, and Boba Fett and Bo Katan would just make sense given that the show is called “The Mandalorian”. I’m expecting the second season to dive a lot more into Mandalorian history and culture, and feature a backdoor pilot episode for the Rebels sequel.
Those news outlets are clickbait. The actress came out with an interview and didn’t even know how to say Ahsoka’s name correctly.
Then she said:
“Someone did the art and I reposted it. Then star wars started following me. And then everybody started thinking it was a whole thing. And its literally been this internet situation. So internet, if it happens, its because of you.”
Ahsoka won’t be in this next season. That interview was posted in March of 2020 and they already shot season 2 by then.