It is not so much what a generic power can do but how you use it. I don't want to see various and diverse powersets being stiffly locked into specific roles and classes. Merging powers with classes/archetypes.
What I mean is... take DCUO for example, they are the worst offender of this, they pigeonholed generic elements and powers into designated roles. Sure everything can DPS but for actual roles things such as ice, earth, and fire can only tank, electricity and plants can only support. At the higher levels this is the only way people think of you when they discover your power set. This is unnerving to me. It feels like they got the superpower part of the game all wrong and stiff armed creativity. Really the game is a joke to me after having played City of Heroes and saw how they handled powersets.
In City of Heroes if a character said they had ice or fire powers the next question would be: "Oh yeah, how do they use them?"
Fire and Ice could be used to support, crowd control, damage from a range, damage in melee, or tank depending on your class not just the power itself. Champions Online did a bit better in this department. For some powers like invulnerability and such it makes sense only a few would have them and they could only do about one thing. The best example would be Darkness, a generic and wide spread superpower, if you said you were Dark/Dark people would give you funny looks because that means you could have been a Blaster, Scrapper, Defender, Corrupter, Stalker, Tanker, or Brute, (Later Controller and Dominator! Oh my!)
Enough said. This is something City of Heroes had in spades and something I deeply wish to see in this game.
PS: From the way classifications and powers are looking they may have already thought about this, I am humbled and anxious for more info.
Every villain is a hero in their own mind.