Yes, she went with Sabine to find Ezra. So, last we saw of Sabine, she and Ahsoka were looking for Ezra. So, if we have Ahsoka, Sabine is a definite possibility to show up.
No no, what I'm saying is that we last saw Ezra with Thrawn so I'm guessing Ahsoka is looking for him and Sabine would be as well. I would think Sabine is not with Ezra unless she found him without Ahsoka.