It definetly will at 80. I dinged 80 and still had the basin, Storm peaks, Zul'darak, and Icecrown completely undiscovered. I did the quest line in Icecrown to open up the ebon blade vendor and a few initial quests for them and got close to a 1k gold just from that. They put in ALOT of quests in WoTLK and if you do even a fraction of them at 80, you'll have more than enough funds.