Lividia should be kept relatively out of danger by having her train in the light full time; both Talaada and Sally are going to be at the Scarlet monastery quite a lot, so she could pose as a favored new acolyte. This would keep her busy, alive, and surrounded by fellow fanatic humanity enjoyers, so she could be summoned when necessary.
Lividia should pick up the template and train alongside Scarletleaf at the Twilight Grove.
Give her the template and rely on on the job training. Lividia should stay an active field agent with as little down time as possible. The poor dear gets bored easily.
Lividia would be an ideal wielder of Light’s Wrath. The staff is crazy powerful but explodes if you lose control of it. Give her enough training to basically know approximately what she’s doing and then have her repeatedly blow herself up until she gets the hang of it.
Template + Scarlet acolyte. Long term higher power level and keeps her alive for emergencies and evening fun times, though she’s likely to rely on Druidic magic and stunt her growth.
Template + Light’s wrath. If any aspect of the druid class is transferable to Discipline Priest, this should help her master it sooner
Template + Light’s Wrath + Acolyte. Whitemane’s HotS kit has some overlap with the proper way to use Light’s Wrath, so she might be the best possible teacher for this. When other trainees would be doing chores, Lividia can go get herself blown up.
If Lividia doesn’t use the archdruid template, give it to Tony
If Lividia doesn’t use the archdruid template, save it for later
If Lividia doesn’t use the Archdruid template, host another poll