Hi folks,
Just a couple of thoughts: I think the Hurt Doctor was the one that finished the time war and became Eccleston. However perhaps he locked himself in it and now sees “notd” as a chance to escape. Perhaps with CE choosing not to be in it, that Doctor has been deemed to close in character to Hurt, so Tennant and Smith don’t enlist his help. Earlier Drs can’t be used because of Time war knowledge ramifications? This could lead to Smith and Tennant having to get him back there in the 50th. They may fail leaving Hurt to go and become the Valeyard? Also we saw the dying Tardis in the most recent design; is Smith the last or is it just her favourite design?