There are many things that Riot Games has put on the back-burner for League of Legends content, but not many root back as far as ye olde days of the consideration to rework Karma. RiotScarizard puts in his input for Karma that she was designed to be a support since the times before 0 CS support was the officially supported metagame.Karma's base stats on her abilities did not provide the 'oomph' required to boast being overly effective without farm while her scaling was decent, but with an archaic kit. Riot's new design philosophy with Karma is to rank her along the lines of a utility AP carry such as Orianna or Lux. Though this was how she was played primarily in the rare occasion in which she was picked via solo top or mid, nothing really felt quite right for her. Here's a sneak-peak at her upcoming abilities:
Passive: Gathering Fire – Hitting enemy champions with Karma’s spells and basic attacks lower Mantra’s cooldown.
R: Mantra – Empowers Karma’s abilities, adding an extra effect to the next ability cast.
Q: Inner Flame – Skillshot that deals magic damage and slows enemies in an area.
- Empowered by Mantra: Soulflare – Increases damage and leaves behind a zone that slows and, after a brief delay, explodes for AoE damage.
W: Focused Resolve – Enemy-targeted tether that deals damage over time. If the tether is unbroken after a short duration, the tethered target is rooted in place.
- Empowered by Mantra: Renewal – Deals bonus damage and heals Karma for the duration of the tether.
E: Inspire – Shields an ally and grants them a short speed boost.
- Empowered by Mantra: Defiance – Enemies near the shielded ally are damaged while nearby allies are shielded and granted a short speed boost.
Source - Riot Games