She’s not a Jedi.

Clone Wars Spoilers

She left the Order and renounced her status as a Jedi at the end of Season 5 of the Clone Wars.

That hasn’t changed and it’s why she has white blades. That Mandalorian episode title is written from the perspective of Din, he went in expecting to find a Jedi but instead he found Ahsoka. Same for the audience going into that episode.

The text in the trailer can be looked at in two ways. First, it can be seen as lazy marketing. Or second, they’re descriptors of things she’s been throughout her life. For example, the war is already over so she’s no longer a Rebel either.

So no, she’s not a Jedi.

Well, at least not yet anyway. There is that final line from Huyang in the trailer and her voice is featured in TROS. So perhaps she will become one again but if she does I expect to see that represented by the color of her lightsabers as well.