What I think is funny about this is that Karma was not even on the majority of the community's radar until recently BECAUSE the pros have been playing her so much. She has not really changed much at all to get her to that position either. In fact, I believe her last change was a nerf, removing her ability to shield minions.
When she is played as a support, all she is a utility bot with fairly strong base damage, meaning her root and her shield are pretty much all she does.
As a mage, she can be a different story. She is certainly capable of dishing out some good damage, but even still, she is not top tier mid picks.
She fits well in many team compositions because of the good utility she provides, .. that is just what she does, ... so no, I don't expect that Riot will be doing much if anything to remove her shield or movement speed.
Nor do I want them to.