Sometimes during large patches (like the upcoming 3.0 patch) when they make heavy/significant changes to classes they do provide a WoD after patch. To fix anything that patch may have hampered. If you really have the time and no money, lvl hard till patch. Hopefully by then you might be close to endgame and the patch will provide you with WoD.
BUT you're gonna wanna confirm somehow that healers will get WoD. I know mages and wardens are supposed to, Im not sure about other classes. But either way. WoD is like $5 bucks. So just lvl hard till patch anyways