1.) Its a one-of-a-kind talented CC available to only one class. (Edit: I believe it DRs with Seduce)
2.) It completely removes the priest from playability for the duration of the spell
3.) When cast by a healer, can potentially jeopardize the entire team if improperly handled
4.) Its a high-skill, insanely situational ability that competes with an AoE root and AoE fear as a tier 1 talent
5.) Uses in PvP are rare and usually involve dropping players off cliffs (cliffs in BGs are rare and nonexistent in arenas) which can be hugely overpowered for a CC, particularly in Eye of the Storm
6.) Uses in PvE are continuously nerfed or ineffective
Anything else I'm missing? I love the spell a ton and the nostalgic memories of dropping players off Thousand Needles or the AB lumber mill remind me why I rolled priest to begin with. I honestly didn't expect it to make it to Cataclysm, and it seems like a terminally ill friend at this point in the game. As much as I want priests to keep the spell, the recent CC philosophy announced by Blizzard makes the spell look like a prime target.
What do you think? Will priests keep Mind Control in WoD? How should it be handled, if at all?