i rather think we will start with a new hero who is sent out to save the first one, it makes sense after all and it could be tied into more history by like "the hero gets to the other hero frozen in the gem but he cant get him out so the dragon rider gives him his powers so he can stop damien and let him out, the new hero manages to let the dragon rider out, in the proces the dragon powers retern to teh original hero, the new hero gets angry and joins damien and we are agien the hero from D2 and have to find a wey to stop damien once and for all*