Among all the changes WoW has made over the years, I feel like this is one of the biggest and one that doesn't get talked about much. I don't believe Carbine has announced anything about it (correct me if i'm wrong), but I for one sincerely hope they have unique class abilities and unique buffs. I always loved the idea that choosing your class really meant something, that it would in some part define what you would bring to you guild/team in raids or other competitive areas once you got to endgame. It added a sense of realism to me when each class has strengths and weaknesses, it made it feel like real teamwork when each class' strengths were being utilized and made to mesh with other classes in order to mask the weaknesses and ultimately kill stuff as a team. Single target tanks, AoE tanks. Single target healers and group heales. Classes that have low DPS but high utility and vice versa etc. Unique buffs. Basically there is no 'god class' that is good at doing everything. There are tradeoffs somewhere so there is always some compelling reason to want each class. I hear a lot of arguments saying that it sucks when your class isn't needed in a unique-class system, and when you get booted in favor of another class that its not fair. To me that is the very beauty of the system, that you are actually needed for fights, as opposed to be just an interchangeable cog. I think the key is to design encounters in such a way that each class has a role to fill; maybe you wont be needed on every single boss, but when you are called in you will have a real role to fulfill that means something. If you have say 25 players in your raid group for your 20 person raid, you're going to have 5 people on standby anyway. Homogenized or unique doesn't matter in that case, those 5 people are out. Why not have a system where at some point in the night those people will actually be needed and can be swapped in? Even if you don't have the 'ideal' class for a given fight, that doesn't mean you have to cancel the raid. It just means the fight won't be as easy as it could have been. Still possible, just more challenging. To me that is a worthwhile tradeoff to have a unique buff system.