If you're coming back to WoW for a month, then there should only be a month+ to go after that before the next expansion (depending how much you trust their release dates this time); Could be a good time to get Dani started, could get most of the way to 60/70 before the expansion hits and you'd both be all set for the ride to 80 ahead of all of us.
Best of luck, hope the new job goes well for you, and see you soon in game.
As.