Here are the datamined class and spell changes for today’s 10.1.5 PTR build!
Class ToolsArcaneTalentsFireTalentsFrostTalents
Specialization (1)
Casting Frostbolt or Flurry grants you an Icicle. Casting Ice Lance causes all Icicles stored to begin launching at the target, each dealing (0.1% of Spell power) Frost damage.
Up to 5 Icicles can be stored. Any excess Icicles gained will be automatically launched.