We know she will be in the second half of 2.5 because she is in the trailer and that seems mostly set in Ul'dah. My guess is she went along with F'lhaminn. One of the major things with Tataru lately has been trying to generate enough money to support the Scions. I actually joked with a friend that we will probably eventually see her become a trader of some type. Ul'dah would be a ripe place for her to look for ways to generate income.