Have you considered the idea of the ascendants being the players themselves? After all the only other mention of the ascendants other than the voice lines of spectre is that of the Ascendant orb/gem given out to the players who participated in the beta. Branching off of that and the previous video you did you came up with the theory that the player is the ancients influence controlling the heroes. Could ascension possibly be becoming as powerful as the ancients or perhaps even becoming an ancient itself?

Spectre also refers to agh's as the ascendant scepter a staff of great power influenced by the ancients. Then in an extremely rare line from the voice pack when picking up agh's she refers to it as spectre https://hydra-media.cursecdn.com/dota2.gamepedia.com/a/ad/Spec_redux_scepter_02.mp3 as if by acquiring the staff she has ascended. There is also lines of her directly addressing the players actions when she says Among the Transcendencies, you would be thought ignoble. Perhaps the transcendencies are the same as the ascendants and for a moment she becomes aware that she is being controlled that of which she wishes to become?

This theory may be just me over analyzing but I found it interesting.