There are kit changes coming along with the visual rework. We'll release more information as we get closer to her launch date, but the general goal is to gear more towards the Mage-support role (think Lux, Morgana, Orianna etc)
So, Karma is now a mid-laner, probobly with just a minor sheild or something that is nowhere near enough for her to be a botlane dedicated support.
Well, to be fair, the current Karma is not a support in any way, and is about 50 times better as a Midlaner, so may as well keep her as a midlaner with some minor supporting abilty in TF.
[When did you last see an Orianna or Lux bot at high levels? Morg is only really used with Varus, and that's stopped since Aphromoo left FEAR.]