So my mage finally hit level 50 on Rift yesterday. Total played time to 50 was 3 days and 5 hours, which makes it one of the fastest times to max level of any MMO that I've played recently. Compare that for example to 6 days and 5 hours for SWTOR and times that tend to be around 4 days for now for WoW.
So now I'm tasked with figuring out what to do with this character now that I've leveled them. I don't have any of my professions maxed, so that seems to be a good first step. There are also two pretty interesting epic quest lines that I've gotten started on. I'm not yet geared enough to do expert dungeons, so I'm left waiting for normal dungeon random queues to try to gear up for experts, while I sell off stuff from my gathering professions to try to get enough gear to qualify for experts.
All in all, it's quite a bit to do. There are also several factions that have daily quests that eventually can reward mounts and nice enchants at various rep levels.