Enough has been said about quick play, but I really want to ensure that new players have in-game learning resources to help them.
I decided to roll an alt because I am kind of over the end-game grind (e35, 12K good enough) and sheesh it feels bad. This has nothing to do with player skill. Incoming players have no opportunity to understand how the game works and are forced to look into third party resources, which can overwhelm/detract from the newbie experience.
The best example I can think of was my sailor's abyss run in adept - the group did not know what a soak was, did not understand they needed what to kick, did not understand the concept of dispelling a debuff, did not understand line of sight on the boss fight, etc. There is a tremendous amount of information (routing, dungeon codex, high level MMO glossary, explanation of basic abilities) that is simply not available or presented in a way that is intuitive. I've played WoW and know where I need to go to find the above information. I am not blaming any of the people I grouped with for not knowing all of this and hope that this game finds a way to be gentler to newer players. I simply cannot foresee that it'll be great for player retention moving forward if newbies don't have easy access to a compendium of in-game learning materials or some kind of a controlled, tutorial dungeon experience.