We got yet another confirmation of the Time Lords (plural) return (see Time Lord Victorious) during BBC’s Children in Need special.
The 3 minute clip shows the Doctor arriving fashionably late to meet Ood Sigma, explaining that he wasn’t in no hurry for his song to end. Sigma tells him that the Ood have been having bad dreams. But unlike the previous vague visions about “something vast” returning, it’s a little more specific this time. The Elder Ood prophesies “It is returning and he is returning and they are returning.” The Ood chant “You will join them.” Who else would the Doctor join but his Time Lord brethren?