no, the teleport scroll to that area is a one time thing only. However, I usually login, go to the island, do my dailies, scroll back to shattrah, fly to hellfire (go get something to drink while flying , fly up and do the 2 dailies, then fly straight north to Netherstorm and do the sunfury attack plan daily - very very easy, 5-10 kills and it drops, you get 250 rep PLUS a chance at a badge - then a 20 min heroic mech 2 boss run, hearth back to shattrah, turn in quests, and done for the day.

Kind of works out as a nice little loop.