Naw. The Klingon augments were a failure, and the greatest shame on the Empire. You don't see them around anymore for a reason - no one wanted to be one.
Half the Klingon arc Fed missions in the game involve the Klingon Empire experimenting with new augments.
It'd make a damn sight more sense for the Klingons to add augments than for Joined Trills to actively work for an enemy of their own people.
Yeah yeah, Trill colony. Rubbish justification. Where are the normal Trills then? Joined Trills are supposed to be old and wise. I do not associate treason with being old and wise.
Augments and Trill are Different
they have VERY different abilities
(A fusion Klingon human hybrid which since enterprise we are expected to call augments)
Why not just at "original series klingon" as a C store option
and sell the Boffs like they do the assorted furry creatures
As much as I like the idea to have a playable TOS Klingons (in the form of Klingon augments in this case), I'm not really sure how it would go with the Klingon lore.
What we know from the shows is that the Klingons were very embaraced for losing their forehead ridges and their Klingon look and tended to hide that from others anytime they actually could. Also Worf had that remark when asked howcome those human-looking people are Klingons - that they don't discuss that with outsiders. And he was a Starfleet officer back then, so I guess that this is quite an issue between the Klingon ethnos.
I would love to have them in STO, but I'm just not sure how it would go down lore-wise.