about 1 year ago i quit wow and froze my account, it was up to wotlk. Recently i wanted to start again, i have upgraded it into a 10 day trial and i have downloaded the full game client, my account is up to cataclysm trial so i was curious if from here it is only necessary to purchase cataclysm so i then have the key to upgrade my account and i wanted to know if just that purchase brings me up to date and if it is necessary to buy any previous games? Any help on this very specific question would be appreciated.