I agree with most of these changes, but:
A. I don't see the point in 8 man raids. Most people can't even host 7 other players but they're convinced it's the right thing to do since eight is the member cap. This just causes people with average - poor computers to lag like hell and makes the game unenjoyable for the host as well as all the players running under them.
Changing the member cap to 4 man makes it easier to find players that can carry, and much easier to host. It also removes the need for easy mode. If you could explain what peoples' obsession with 8 man raids is and what they do to benefit the gameplay maybe I'd change my mind on this.