Been looking at various sources and found a few more bits of info.
Self-Res
It's going because it was deemed boring to see so many fireteams waiting for their super to fill up and then cheese whatever activity it was with this. I kinda like the idea of it going. It'll hurt more when we all wipe multiple times but it always felt a little weird getting pulled through because of a self-res after everyone has wiped.
Titan barriers
All Titan classes will have barriers Luke Smith has said. Again, similar to self-res it was deemed unfair on groups having to have a defender for a bubble or forcing a titan player to not be able to use other abilities. I'm with it to a point, but I loved playing the Defender. It was really my only character.
Support Class
They have confirmed they're looking into it has another class to compliment the others. They have done extremely well to stay clear of the usual MMO styles of tank, healer, dps characters but there is a potential place for support in this due to how many teams require a lynchpin on the team that is playing support and looking out for danger.