No, she is not doing ATS format dancing, as far as I have ever heard. I would be curious to hear or see that!
And Aziyade is right. A lot of people want to lay claim to being the founders of "Tribal", but the fact is that Bal Anat may have had the first moniker which included the word tribal, but they didn't have a different style. They were cabaret and folkloric (fakeloric--Jamilla admits to making stuff up

), and used a chorus inasmuch as the rest of the dancers stayed onstage at the same time as featured acts were performing, and sometimes played zills or interacted. Hahbi Ru, too, is often called tribal, but they too are folkloric, and not tribal in that sense of the word.
For the first truly new style of movement and approach to the dance, that began with Carolena and ATS. Which is why I wish people would stop saying "But Bal Anat! But but but!" Because it really wasn't the beginning of the thread as we follow it as a dance STYLE.
Aziyade, I love you.
It's funny trying to pin labels on bellydance "back then". As Carolena has said, back then they didn't have the knowledge or the community drive to label things like we do today. Everything was just bellydance--good or bad, but bellydance. So trying to say it was this or that...it wasn't because anyone was necessarily *trying* to be this or that. They were just doing what they felt, or what the situation was calling for (like the Ren Faires, which demanded different costuming and staging than other situations).