Maybe the OP let his story quests fall behind or didn't clear all of the side quests in the previous hubs before moving on? I did each and every sidequest and also all of the dungeons while leveling up (even the dungeons that are not required for the story line) and I didn't have any issues with not having enough quests. The most I had to grind was like 30k XP to get my level up to where the story quest continues, but that only happened about 2 times, the rest of the time I'm leveling fine without any hiccups. Don't know why everybody is complaining about not having enough quests.