Endgame is:
--Challenge mode solo dungeons. Give level 30 items, lowest end. Each boss seems to have 1 very rare epic you can hope drops.
--Duo Dungeons, There are 4 and are pretty challenging. The cool thing is nearly every class/role can go and do well, though some better than others. Tank/Healer ofc is the EZ mode but I have done it was 2x fire tanks, using skills to heal with correct barrel use for the extra healing etc. It was actually really fun. Drops level 30 loot and mid-range blues, some rare epic drops. Rewards tokens used to buy T1 Armour.
--Hard Mode Dungeons. There are 4 atm and give high end level 30 loot, pretty much this games version of a "Heroic Dungeon". Its really fun but it is dead important you have 1 of each class and everyone knows how to play it. Tanks need to know when to block/dodge and hold agro, healers need to heal (duh), dps needs to focus down targets and the controller needs to support with disables and keeping everyones powerbars topped up. Rewards T1 armour tokens
--Raids. Not done yet but there around 6-8 that I have spotted, some 4 person (like a super heroic) and others 8. It suggests you have X stat before joining them but does not restrict you. No idea what drops, I am not geared up to go yet. Rewards T2 armour tokens.
--Item Set Hunting. Once some kind of WoWhead for this game appears you can then start grinding for item parts you like the look off off the above content or grind mobs in certain areas etc. When the games AH is added, you can also do it for a profit. I already know a place that has a 100% chance to drop Insectoid Helms for example.
--Completing Feats. This games version of Achievement hunting, but there is a real incentive here for it. Every 100 feat points gives you 1 extra skillpoint to use, really handy. Theres tons of stuff todo, this game has a ton of shit to find around the large cities that rivals crackdown on how many there are and how hard they are to find.
--PvP. I not done much of this but there are several modes of normal pvp, pvp world events and the legends pvp stuff.
--Any other random stuff you fancy, being quests you missed, bounty's in the world, race challenges or just zooming around fighting random heroes/villains. World PvP is so satisfying in this game as your target can always run away, fight back or if your not careful kill you, even if they are 10 levels lower.