For Ogri'la, there's somewhere around 12 days of daily quest remaining.
The Sha'tar? A total of 9 runs through Botanica/Arcatraz to reach exalted.
Keepers of Time? A dozen clears of Old Hilsbrad. Bleah.
In the meantime, between grinding out reputation, I've had Aeth running hither and yon in Azeroth and Outland, polishing off quests and quest chains that she's managed to miss on her way to Loremaster. She's done 4,574 quests, according to the Armory, and she's still turning up ones here and there that she hasn't completed yet.
At this point, though, they're mostly raid quests. She's going to have to get together with some folks and do a full clear of Karazhan one day, for example. Mmmm... Violet Eye rep. Only 6 full clears of Kara to get to exalted? Maybe that will be reputation #41, then.