This has been mentioned some in a few forums, but as a working adult with a family I find it hard to keep up with games that people never stop playing. I know AoC will be that game because its going to be the best thing since the unspeakable MMO. It looks amazing and we all anticipate its release with the greatest of patience. I for one will take off two weeks of work when this drops just to enjoy it. So before you scroll to reply and just mad type please read this...
The issue becomes feeling left behind or getting destroyed by high level well geared characters early on because while you may have 20 hours played in a week your opponent has 60 hours. Of course rewards for playing the game are absolutely necessary and I don't think anyone should be penalized for this but making me play with players who have a massive amount of more time then me can be daunting. The term casual is thrown around but really it means limited in time and skill. Like any sport or activity the more you play and practice the better you become.
Just like classic servers or legendary servers other games have it would be nice to see a casual player server where maybe there can be a cap on experienced per character weekly or something to that nature. This would also allow slower players to roll alts and find a character they really like. It can be frustrating dumping in several hours or weeks into a character then realizing you like another one more but having to restart sometimes without your leveling buddies as they move on.
With that said I know it would not be everyone's desire to play on a server like that because they want to get to end game fast and become "elite" which there is nothing wrong with. Competition is the center of a PvP based MMO but a fair fight is needed. This could also be good for RP players since the progression would feel more realistic as you would progressive over a longer period of time seeing your character age with the game.
Just an idea... Don't throw heavy stones at me.