I hope they do something with the time war in the near future of the show. Not to show it, but maybe The Doctor decides he doesn't want to be the only Time Lord anymore and goes on a journey to try unlocking the war, or saving the other Time Lords.
Wouldn't mind seeing an entire season dedicated to the Doctor trying to find a lost group of Time Lords or something. Something to shed more light on what happened and how they could restore some form of Time Lord civilization.