Gaudu and Bernal are the obvious revelations for next season. The feud of their fanboys will also be revealed as the dominant fanboy feud on CN, now that Contador has retired so people have to find something new after Froome vs. Contador.
I think Sam Oomen could do very well next year. He was 13th in the GC of his first GT when he had to abandon due to illness and later he was 11th in his Lombardia. Good all round GC rider who has also got the engine to do well in difficult one day races.
I don't know if it would be a revelation, but Miguel Ángel López to compete ftw in the Giro if he can stay without serious injury until then.
Finally, Valverde will be revealed as a divine emissary appointed by the gods to dominate cycling forever. Spain will have to ritually sacrifice Catalunya to the gods in order for them to grant Valverde immortality and he will truly become El Imbatido, being beaten by neither old age nor injury, winning each and every cycling race under the sun for all eternity.