I am curious if the DSC showrunners might go for the Klingon fusion race explanation this time around for the ever changing Klingon appearance.
I remember reading a ST compendium type of book. I am not sure if it was actually a ST compendium or encyclopedia or something of the kind. I think it was published in the 80s or 90s.
Anyway, this was the time after the TMP turtle head Klingons were introduced but years before the augment virus explanation. The book explained away the Klingon TOS look by describing the TOS Klingons as a manufactured hybrid fusion race created by the Imperial Klingons (the turtle heads) in order to disguise the real look of the Klingons. The fusion (TOS) Klingons were used as a front group to deal with, and perhaps infiltrate, the human led Federation.
Voq was turned into Ash. I guess Voq/Ash is sort of like a fusion Klingon. After I saw the scene where it was revealed that Voq was engineered to be Ash, it didn't strike me as a novel idea because the fusion Klingon idea had been around for awhile.
If DSC does offer an explanation, in future episodes, regarding how DSC looking Klingons will come to look like TOS Klingons, it wouldn't surprise me if the DSC showrunners did not rehash the augment virus explanation, since they seem to like to do things their own way. The fusion Klingon idea might be a plausible option. Perhaps there will be more Voq/Ash fusion type of Klingons to come, which would lead to the TOS looking Klingons. Just my speculation.
Again? What is about the Klingons that compel the showrunners to remake them over and over.